{"kind": "product", "path": "vulns/ubuntu-20.04-lts/bind9", "name": "bind9", "product": "bind9", "ecosystem": "Ubuntu:20.04:LTS", "items": [{"id": "CVE-2024-12705", "noindex": false, "published": "2025-01-29T21:40:27.839Z", "modified": "2025-02-07T17:02:44.473Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.18367, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-12705", "title": "DNS-over-HTTPS implementation suffers from multiple issues under heavy query load", "description": "Clients using DNS-over-HTTPS (DoH) can exhaust a DNS resolver's CPU and/or memory by flooding it with crafted valid or invalid HTTP/2 traffic.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, and 9.18.11-S1 through 9.18.32-S1.", "references": ["https://kb.isc.org/docs/cve-2024-12705", "https://security.netapp.com/advisory/ntap-20250207-0003/", "https://nvd.nist.gov/vuln/detail/CVE-2024-12705"], "fixes": ["1:9.18.30-0ubuntu0.20.04.2"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-11187", "noindex": false, "published": "2025-01-29T21:40:11.942Z", "modified": "2025-02-11T19:02:32.914Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.15842, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-11187", "title": "Many records in the additional section cause CPU exhaustion", "description": "It is possible to construct a zone such that some queries to it will generate responses containing numerous records in the Additional section. An attacker sending many such queries can cause either the authoritative server itself or an independent resolver to use disproportionate resources processing the queries. Zones will usually need to have been deliberately crafted to attack this exposure.\nThis issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.32, 9.20.0 through 9.20.4, 9.21.0 through 9.21.3, 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.32-S1.", "references": ["https://kb.isc.org/docs/cve-2024-11187", "https://security.netapp.com/advisory/ntap-20250207-0002/", "https://lists.debian.org/debian-lts-announce/2025/02/msg00011.html"], "fixes": ["1:9.18.30-0ubuntu0.20.04.2"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-4076", "noindex": false, "published": "2024-07-23T14:40:57.256Z", "modified": "2025-02-13T17:53:23.437Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.02111, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-4076", "title": "Assertion failure when serving both stale cache data and authoritative zone content", "description": "Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure.\nThis issue affects BIND 9 versions 9.16.13 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.33-S1 through 9.11.37-S1, 9.16.13-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.", "references": ["https://kb.isc.org/docs/cve-2024-4076", "http://www.openwall.com/lists/oss-security/2024/07/23/1", "http://www.openwall.com/lists/oss-security/2024/07/31/2"], "fixes": ["1:9.18.28-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-1975", "noindex": false, "published": "2024-07-23T14:38:57.143Z", "modified": "2025-02-13T17:32:28.908Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.02114, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-1975", "title": "SIG(0) can be used to exhaust CPU resources", "description": "If a server hosts a zone containing a \"KEY\" Resource Record, or a resolver DNSSEC-validates a \"KEY\" Resource Record from a DNSSEC-signed domain in cache, a client can exhaust resolver CPU resources by sending a stream of SIG(0) signed requests.\nThis issue affects BIND 9 versions 9.0.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.49-S1, and 9.18.11-S1 through 9.18.27-S1.", "references": ["https://kb.isc.org/docs/cve-2024-1975", "http://www.openwall.com/lists/oss-security/2024/07/23/1", "http://www.openwall.com/lists/oss-security/2024/07/31/2"], "fixes": ["1:9.18.28-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-1737", "noindex": false, "published": "2024-07-23T14:34:09.750Z", "modified": "2025-02-13T17:32:25.755Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.02114, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-1737", "title": "BIND's database will be slow if a very large number of RRs exist at the same name", "description": "Resolver caches and authoritative zone databases that hold significant numbers of RRs for the same hostname (of any RTYPE) can suffer from degraded performance as content is being added or updated, and also when handling client queries for this name.\nThis issue affects BIND 9 versions 9.11.0 through 9.11.37, 9.16.0 through 9.16.50, 9.18.0 through 9.18.27, 9.19.0 through 9.19.24, 9.11.4-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.50-S1, and 9.18.11-S1 through 9.18.27-S1.", "references": ["https://kb.isc.org/docs/cve-2024-1737", "https://kb.isc.org/docs/rrset-limits-in-zones", "http://www.openwall.com/lists/oss-security/2024/07/23/1"], "fixes": ["1:9.18.28-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2024-0760", "noindex": false, "published": "2024-07-23T14:26:54.983Z", "modified": "2025-02-13T17:27:19.172Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.0468, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-0760", "title": "A flood of DNS messages over TCP may make the server unstable", "description": "A malicious client can send many DNS messages over TCP, potentially causing the server to become unstable while the attack is in progress. The server may recover after the attack ceases. Use of ACLs will not mitigate the attack. \nThis issue affects BIND 9 versions 9.18.1 through 9.18.27, 9.19.0 through 9.19.24, and 9.18.11-S1 through 9.18.27-S1.", "references": ["https://kb.isc.org/docs/cve-2024-0760", "http://www.openwall.com/lists/oss-security/2024/07/23/1", "http://www.openwall.com/lists/oss-security/2024/07/31/2"], "fixes": ["1:9.18.28-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-50868", "noindex": false, "published": "2024-02-14T00:00:00.000Z", "modified": "2025-11-04T18:20:42.287Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "severity": "high", "epss": 0.74295, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-50868", "title": "CVE-2023-50868", "description": "The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the \"NSEC3\" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.", "references": ["https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/", "https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2024-01.html", "https://www.isc.org/blogs/2024-bind-security-release/"], "fixes": ["1:9.16.48-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-50387", "noindex": false, "published": "2024-02-14T00:00:00.000Z", "modified": "2025-11-04T18:20:34.949Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.9999, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-50387", "title": "CVE-2023-50387", "description": "Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the \"KeyTrap\" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.", "references": ["https://www.athene-center.de/aktuelles/key-trap", "https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.19.1-released/", "https://kb.isc.org/docs/cve-2023-50387"], "fixes": ["1:9.16.48-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-6516", "noindex": false, "published": "2024-02-13T14:05:28.933Z", "modified": "2025-02-13T17:26:26.170Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.01106, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-6516", "title": "Specific recursive query patterns may lead to an out-of-memory condition", "description": "To keep its cache database efficient, `named` running as a recursive resolver occasionally attempts to clean up the database. It uses several methods, including some that are asynchronous: a small chunk of memory pointing to the cache element that can be cleaned up is first allocated and then queued for later processing. It was discovered that if the resolver is continuously processing query patterns triggering this type of cache-database maintenance, `named` may not be able to handle the cleanup events in a timely manner. This in turn enables the list of queued cleanup events to grow infinitely large over time, allowing the configured `max-c", "references": ["https://kb.isc.org/docs/cve-2023-6516", "http://www.openwall.com/lists/oss-security/2024/02/13/1", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"], "fixes": ["1:9.16.48-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-5517", "noindex": false, "published": "2024-02-13T14:04:54.389Z", "modified": "2025-02-13T17:25:39.556Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.01287, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-5517", "title": "Querying RFC 1918 reverse zones may cause an assertion failure when \"nxdomain-redirect\" is enabled", "description": "A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when:\n\n  - `nxdomain-redirect <domain>;` is configured, and\n  - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response.\nThis issue affects BIND 9 versions 9.12.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.", "references": ["https://kb.isc.org/docs/cve-2023-5517", "http://www.openwall.com/lists/oss-security/2024/02/13/1", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"], "fixes": ["1:9.16.48-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-4408", "noindex": false, "published": "2024-02-13T14:04:17.519Z", "modified": "2025-03-14T16:16:25.564Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.01387, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-4408", "title": "Parsing large DNS messages may cause excessive CPU load", "description": "The DNS message parsing code in `named` includes a section whose computational complexity is overly high. It does not cause problems for typical DNS traffic, but crafted queries and responses may cause excessive CPU load on the affected `named` instance by exploiting this flaw. This issue affects both authoritative servers and recursive resolvers.\nThis issue affects BIND 9 versions 9.0.0 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9.9.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.45-S1, and 9.18.11-S1 through 9.18.21-S1.", "references": ["https://kb.isc.org/docs/cve-2023-4408", "http://www.openwall.com/lists/oss-security/2024/02/13/1", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PNNHZSZPG2E7NBMBNYPGHCFI4V4XRWNQ/"], "fixes": ["1:9.16.48-0ubuntu0.20.04.1"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-3341", "noindex": false, "published": "2023-09-20T12:32:03.073Z", "modified": "2025-12-02T20:15:58.967Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.02958, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-3341", "title": "A stack exhaustion flaw in control channel code may cause named to terminate unexpectedly", "description": "The code that processes control channel messages sent to `named` calls certain functions recursively during packet parsing. Recursion depth is only limited by the maximum accepted packet size; depending on the environment, this may cause the packet-parsing code to run out of available stack memory, causing `named` to terminate unexpectedly. Since each incoming control channel message is fully parsed before its contents are authenticated, exploiting this flaw does not require the attacker to hold a valid RNDC key; only network access to the control channel's configured TCP port is necessary.\nThis issue affects BIND 9 versions 9.2.0 through 9.1", "references": ["https://kb.isc.org/docs/cve-2023-3341", "http://www.openwall.com/lists/oss-security/2023/09/20/2", "https://www.debian.org/security/2023/dsa-5504"], "fixes": ["1:9.16.1-0ubuntu2.16"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-2911", "noindex": false, "published": "2023-06-21T16:26:36.587Z", "modified": "2025-02-13T16:49:00.351Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.02451, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-2911", "title": "Exceeding the recursive-clients quota may cause named to terminate unexpectedly when stale-answer-client-timeout is set to 0", "description": "If the `recursive-clients` quota is reached on a BIND 9 resolver configured with both `stale-answer-enable yes;` and `stale-answer-client-timeout 0;`, a sequence of serve-stale-related lookups could cause `named` to loop and terminate unexpectedly due to a stack overflow.\nThis issue affects BIND 9 versions 9.16.33 through 9.16.41, 9.18.7 through 9.18.15, 9.16.33-S1 through 9.16.41-S1, and 9.18.11-S1 through 9.18.15-S1.", "references": ["https://kb.isc.org/docs/cve-2023-2911", "http://www.openwall.com/lists/oss-security/2023/06/21/6", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/"], "fixes": ["1:9.16.1-0ubuntu2.15"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-2828", "noindex": false, "published": "2023-06-21T16:26:07.096Z", "modified": "2025-02-13T16:48:38.124Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.03696, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-2828", "title": "named's configured cache size limit can be significantly exceeded", "description": "Every `named` instance configured to run as a recursive resolver maintains a cache database holding the responses to the queries it has recently sent to authoritative servers. The size limit for that cache database can be configured using the `max-cache-size` statement in the configuration file; it defaults to 90% of the total amount of memory available on the host. When the size of the cache reaches 7/8 of the configured limit, a cache-cleaning algorithm starts to remove expired and/or least-recently used RRsets from the cache, to keep memory use below the configured limit.\n\nIt has been discovered that the effectiveness of the cache-cleaning", "references": ["https://kb.isc.org/docs/cve-2023-2828", "http://www.openwall.com/lists/oss-security/2023/06/21/6", "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U3K6AJK7RRSR53HRF5GGKPA6PDUDWOD2/"], "fixes": ["1:9.16.1-0ubuntu2.15"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-3094", "noindex": false, "published": "2023-01-25T21:34:52.983Z", "modified": "2025-04-01T13:48:37.944Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.13213, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-3094", "title": "An UPDATE message flood may cause named to exhaust all available memory", "description": "Sending a flood of dynamic DNS updates may cause `named` to allocate large amounts of memory. This, in turn, may cause `named` to exit due to a lack of free memory. We are not aware of any cases where this has been exploited.\n\nMemory is allocated prior to the checking of access permissions (ACLs) and is retained during the processing of a dynamic update from a client whose access credentials are accepted. Memory allocated to clients that are not permitted to send updates is released immediately upon rejection. The scope of this vulnerability is limited therefore to trusted clients who are permitted to make dynamic zone changes.\n\nIf a dynamic ", "references": ["https://kb.isc.org/docs/cve-2022-3094", "https://nvd.nist.gov/vuln/detail/CVE-2022-3094"], "fixes": ["1:9.16.1-0ubuntu2.12"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-38178", "noindex": false, "published": "2022-09-21T10:15:29.078Z", "modified": "2025-05-28T15:23:06.572Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.03112, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-38178", "title": "Memory leaks in EdDSA DNSSEC verification code", "description": "By spoofing the target resolver with responses that have a malformed EdDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.", "references": ["https://kb.isc.org/docs/cve-2022-38178", "http://www.openwall.com/lists/oss-security/2022/09/21/3", "https://www.debian.org/security/2022/dsa-5235"], "fixes": ["1:9.16.1-0ubuntu2.11"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-38177", "noindex": false, "published": "2022-09-21T10:15:28.292Z", "modified": "2025-05-28T15:23:30.627Z", "cvss": 7.5, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": 0.03288, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-38177", "title": "Memory leak in ECDSA DNSSEC verification code", "description": "By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.", "references": ["https://kb.isc.org/docs/cve-2022-38177", "http://www.openwall.com/lists/oss-security/2022/09/21/3", "https://www.debian.org/security/2022/dsa-5235"], "fixes": ["1:9.16.1-0ubuntu2.11"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2022-2795", "noindex": false, "published": "2022-09-21T10:15:25.796Z", "modified": "2024-11-29T12:04:33.614Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.02291, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-2795", "title": "Processing large delegations may severely degrade resolver performance", "description": "By flooding the target resolver with queries exploiting this flaw an attacker can significantly impair the resolver's performance, effectively denying legitimate clients access to the DNS resolution service.", "references": ["https://kb.isc.org/docs/cve-2022-2795", "http://www.openwall.com/lists/oss-security/2022/09/21/3", "https://www.debian.org/security/2022/dsa-5235"], "fixes": ["1:9.16.1-0ubuntu2.11"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-25220", "noindex": false, "published": "2022-03-23T12:50:10.367Z", "modified": "2024-09-16T17:08:54.143Z", "cvss": 6.8, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N", "severity": "medium", "epss": 0.03479, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-25220", "title": "DNS forwarders - cache poisoning vulnerability", "description": "BIND 9.11.0 -> 9.11.36 9.12.0 -> 9.16.26 9.17.0 -> 9.18.0 BIND Supported Preview Editions: 9.11.4-S1 -> 9.11.36-S1 9.16.8-S1 -> 9.16.26-S1 Versions of BIND 9 earlier than those shown - back to 9.1.0, including Supported Preview Editions - are also believed to be affected but have not been tested as they are EOL. The cache could become poisoned with incorrect records leading to queries being made to the wrong servers, which might also result in false information being returned to clients.", "references": ["https://kb.isc.org/v1/docs/cve-2021-25220", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NYD7US4HZRFUGAJ66ZTHFBYVP5N3OQBY/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/API7U5E7SX7BAAVFNW366FFJGD6NZZKV/"], "fixes": ["1:9.16.1-0ubuntu2.10"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-25219", "noindex": false, "published": "2021-10-27T21:10:10.088Z", "modified": "2024-09-16T17:33:38.865Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "severity": "medium", "epss": 0.10951, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-25219", "title": "Lame cache can be abused to severely degrade resolver performance", "description": "In BIND 9.3.0 -> 9.11.35, 9.12.0 -> 9.16.21, and versions 9.9.3-S1 -> 9.11.35-S1 and 9.16.8-S1 -> 9.16.21-S1 of BIND Supported Preview Edition, as well as release versions 9.17.0 -> 9.17.18 of the BIND 9.17 development branch, exploitation of broken authoritative servers using a flaw in response processing can cause degradation in BIND resolver performance. The way the lame cache is currently designed makes it possible for its internal data structures to grow almost infinitely, which may cause significant delays in client query processing.", "references": ["https://kb.isc.org/v1/docs/cve-2021-25219", "https://www.debian.org/security/2021/dsa-4994", "https://lists.debian.org/debian-lts-announce/2021/11/msg00001.html"], "fixes": ["1:9.16.1-0ubuntu2.9"], "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}]}], "total": 33, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 2, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "bind9", "path": "vulns/ubuntu-20.04-lts/bind9", "ecosystem": "Ubuntu:20.04:LTS"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2025-12-02T20:15:58.967Z", "early_advisories": [], "license": "You may freely use the PatchFirst selection and our additions (priorities, early warnings, texts, summaries and aggregates) for your own purposes, including internal business use. Resale, commercial distribution and bulk mirroring of this selection or these additions require a written agreement with the operator. Whenever you use or publish the selection or our additions, credit PatchFirst (https://patchfirst.dev/vulns/) with this link to the regional feed page. Original records from open sources remain subject to their respective licenses and terms. These conditions do not restrict your rights to the original data, which you can obtain directly from those sources.", "terms_url": "https://patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "Records are selected, normalized and combined by PatchFirst; summaries and translations may be added. News is credited with a link to the original source in each entry.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Upstream licenses vary; see the source catalog."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Free public scores; attribution requested (FIRST EPSS, scores generated by Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. 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