{"kind": "product", "path": "vulns/debian-13/dnsmasq", "name": "dnsmasq", "product": "dnsmasq", "ecosystem": "Debian:13", "items": [{"id": "CVE-2026-13002", "noindex": false, "published": "2026-08-14T15:02:26.469Z", "modified": "2026-08-31T17:38:09.418Z", "cvss": 4.4, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "severity": "medium", "epss": 0.00147, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-13002", "title": "Dnsmasq: infinite loop dos in dnssec nsec/nsec3 type bitmap parsing", "description": "A flow has been identified into dnssec.c library, causing an infinite loop to dnsmasq service. An attacker who controls any DNSSEC-signed zone can hang the dnsmasq process with a single crafted response, killing all DNS resolution for its clients.", "references": ["https://access.redhat.com/security/cve/CVE-2026-13002", "https://bugzilla.redhat.com/show_bug.cgi?id=2486360", "https://nvd.nist.gov/vuln/detail/CVE-2026-13002"], "fixes": [], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-12969", "noindex": false, "published": "2026-06-23T13:28:56.732Z", "modified": "2026-08-31T11:48:30.188Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "medium", "epss": 0.00256, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-12969", "title": "Dnsmasq: dnsmasq: out-of-bounds read in find_soa() due to missing extrabytes validation", "description": "An out-of-bounds read vulnerability exists in dnsmasq's find_soa() function in src/rfc1035.c. When parsing NS section records, extract_name() is called with extrabytes=0, failing to validate that 10 additional bytes exist for fixed-length DNS record fields. A remote attacker controlling a DNS zone can exploit this via a crafted NXDOMAIN response to cause a 10-byte heap out-of-bounds read, potentially accessing stale data from prior transactions.", "references": ["https://access.redhat.com/security/cve/CVE-2026-12969", "https://bugzilla.redhat.com/show_bug.cgi?id=2491663", "https://nvd.nist.gov/vuln/detail/CVE-2026-12969"], "fixes": ["2.91-1+deb13u2"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-12725", "noindex": false, "published": "2026-06-22T13:55:05.406Z", "modified": "2026-08-31T21:22:15.716Z", "cvss": 5.9, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "medium", "epss": 0.00528, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-12725", "title": "Dnsmasq: dnsmasq: heap buffer overflow in log_query() when logging unsupported ds/dnskey replies", "description": "A heap-based buffer overflow was found in dnsmasq. When DNSSEC validation and\nquery logging are both enabled, logging of DS or DNSKEY replies containing\nunsupported algorithm or digest types can cause dnsmasq to write past the end\nof an internal logging buffer. A remote attacker able to supply such a DNS\nresponse may crash the dnsmasq process, resulting in denial of service.", "references": ["https://access.redhat.com/security/cve/CVE-2026-12725", "https://bugzilla.redhat.com/show_bug.cgi?id=2490763", "https://nvd.nist.gov/vuln/detail/CVE-2026-12725"], "fixes": ["2.91-1+deb13u2"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-5172", "noindex": false, "published": "2026-05-11T16:48:46.219Z", "modified": "2026-09-01T12:04:54.715Z", "cvss": 7.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "severity": "high", "epss": 0.02683, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-5172", "title": "CVE-2026-5172", "description": "A buffer overflow in dnsmasq’s extract_addresses() function allows an attacker to trigger a heap out-of-bounds read and crash by exploiting a malformed DNS response, enabling extract_name() to advance the pointer past the record’s end.", "references": ["https://www.kb.cert.org/vuls/id/471747", "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html", "https://thekelleys.org.uk/dnsmasq/CVE/"], "fixes": ["2.91-1+deb13u1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-4893", "noindex": false, "published": "2026-05-11T16:48:15.106Z", "modified": "2026-05-20T14:09:53.804Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "medium", "epss": 0.01784, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-4893", "title": "CVE-2026-4893", "description": "An information disclosure vulnerability in dnsmasq allows remote attackers to bypass source checks via a crafted DNS packet with RFC 7871 client subnet information.", "references": ["https://www.kb.cert.org/vuls/id/471747", "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html", "https://thekelleys.org.uk/dnsmasq/CVE/"], "fixes": ["2.91-1+deb13u1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-4892", "noindex": false, "published": "2026-05-11T16:47:58.846Z", "modified": "2026-09-01T12:04:42.225Z", "cvss": 8.4, "cvss_vector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "severity": "high", "epss": 0.00812, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-4892", "title": "CVE-2026-4892", "description": "A heap-based out-of-bounds write vulnerability in the DHCPv6 implementation of dnsmasq allows local attackers to execute arbitrary code with root privileges via a crafted DHCPv6 packet.", "references": ["https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html", "https://www.kb.cert.org/vuls/id/471747", "https://thekelleys.org.uk/dnsmasq/CVE/"], "fixes": ["2.91-1+deb13u1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-4891", "noindex": false, "published": "2026-05-11T16:47:33.202Z", "modified": "2026-09-01T12:04:40.204Z", "cvss": 5.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "severity": "medium", "epss": 0.06411, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-4891", "title": "CVE-2026-4891", "description": "A heap-based out-of-bounds read vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.", "references": ["https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html", "https://www.kb.cert.org/vuls/id/471747", "https://thekelleys.org.uk/dnsmasq/CVE/"], "fixes": ["2.91-1+deb13u1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-4890", "noindex": false, "published": "2026-05-11T16:47:16.419Z", "modified": "2026-09-01T12:05:00.879Z", "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": 0.08849, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-4890", "title": "CVE-2026-4890", "description": "A Denial of Service (DoS) vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet.", "references": ["https://www.kb.cert.org/vuls/id/471747", "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2026q2/018471.html", "https://thekelleys.org.uk/dnsmasq/CVE/"], "fixes": ["2.91-1+deb13u1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2026-2291", "noindex": false, "published": "2026-05-11T16:47:01.981Z", "modified": "2026-07-20T20:30:02.766Z", "cvss": 7.3, "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L", "severity": "high", "epss": 0.00611, "kev": false, "exploits": ["public-poc"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-2291", "title": "CVE-2026-2291", "description": "dnsmasqs extract_name() function can be abused to cause a heap buffer overflow, allowing an attacker to inject false DNS cache entries, which could result in DNS lookups to redirect to an attacker-controlled IP address, or to cause a DoS.", "references": ["https://www.suse.com/security/cve/CVE-2026-2291.html", "https://www.kb.cert.org/vuls/id/471747", "https://thekelleys.org.uk/dnsmasq/CVE/"], "fixes": ["2.91-1+deb13u1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2020-37127", "noindex": false, "published": "2026-02-05T16:13:33.718Z", "modified": "2026-02-05T21:18:03.656Z", "cvss": 6.9, "cvss_vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N", "severity": "medium", "epss": 0.0021, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-37127", "title": "dnsmasq-utils 2.79-1 - 'dhcp_release' Denial of Service", "description": "Dnsmasq-utils 2.79-1 contains a buffer overflow vulnerability in the dhcp_release utility that allows attackers to cause a denial of service by supplying excessive input. Attackers can trigger a core dump and terminate the dhcp_release process by sending a crafted input string longer than 16 characters.", "references": ["https://www.exploit-db.com/exploits/48301", "https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1", "https://www.vulncheck.com/advisories/dnsmasq-utils-dhcprelease-denial-of-service"], "fixes": ["2.80-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2023-49441", "noindex": false, "published": "2024-06-06T21:20:59.871Z", "modified": "2025-03-14T15:19:01.559Z", "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": 0.00656, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-49441", "title": "CVE-2023-49441", "description": "dnsmasq 2.9 is vulnerable to Integer Overflow via forward_query.", "references": ["https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2023q4/017332.html", "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=65c2d6afd67a032f45f40d7e4d620f5d73e5f07d", "https://nvd.nist.gov/vuln/detail/CVE-2023-49441"], "fixes": ["2.90-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"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": ["2.90-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"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": ["2.90-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2023-28450", "noindex": false, "published": "2023-03-15T00:00:00.000Z", "modified": "2025-11-03T21:47:37.596Z", "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": 0.01838, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-28450", "title": "CVE-2023-28450", "description": "An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.", "references": ["https://thekelleys.org.uk/dnsmasq/doc.html", "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=eb92fb32b746f2104b0f370b5b295bb8dd4bd5e5", "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=blob%3Bf=CHANGELOG"], "fixes": ["2.90-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2022-0934", "noindex": false, "published": "2022-08-29T14:03:02.000Z", "modified": "2025-11-03T21:45:45.666Z", "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": 0.02644, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2022-0934", "title": "CVE-2022-0934", "description": "A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=2057075", "https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html", "https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39"], "fixes": ["2.87-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2021-3448", "noindex": false, "published": "2021-04-08T22:06:45.000Z", "modified": "2025-12-03T00:40:40.220Z", "cvss": 4, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N", "severity": "medium", "epss": 0.02283, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-3448", "title": "CVE-2021-3448", "description": "A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1939368", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GHURNEHHUBSW45KMIZ4FNBCSUPWPGV5V/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FHG7GWSQWKF7JXIMLOGJBKZWBB4VIAJ7/"], "fixes": ["2.85-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2020-14312", "noindex": false, "published": "2021-02-05T23:16:33.000Z", "modified": "2024-08-04T12:39:36.268Z", "cvss": 5.9, "cvss_vector": "", "severity": "medium", "epss": 0.0123, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-14312", "title": "CVE-2020-14312", "description": "A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option `local-service` is not enabled. Running dnsmasq in this manner may inadvertently make it an open resolver accessible from any address on the internet. This flaw allows an attacker to conduct a Distributed Denial of Service (DDoS) against other systems.", "references": ["https://bugzilla.redhat.com/show_bug.cgi?id=1851342", "https://nvd.nist.gov/vuln/detail/CVE-2020-14312"], "fixes": ["2.69-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2020-25686", "noindex": false, "published": "2021-01-20T16:47:17.000Z", "modified": "2025-11-04T19:12:14.331Z", "cvss": 3.7, "cvss_vector": "", "severity": "low", "epss": 0.05466, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-25686", "title": "CVE-2020-25686", "description": "A flaw was found in dnsmasq before version 2.83. When receiving a query, dnsmasq does not check for an existing pending request for the same name and forwards a new request. By default, a maximum of 150 pending queries can be sent to upstream servers, so there can be at most 150 queries for the same name. This flaw allows an off-path attacker on the network to substantially reduce the number of attempts that it would have to perform to forge a reply and have it accepted by dnsmasq. This issue is mentioned in the \"Birthday Attacks\" section of RFC5452. If chained with CVE-2020-25684, the attack complexity of a successful attack is reduced. The ", "references": ["https://www.jsof-tech.com/disclosures/dnspooq/", "https://bugzilla.redhat.com/show_bug.cgi?id=1890125", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"], "fixes": ["2.83-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2020-25681", "noindex": false, "published": "2021-01-20T16:36:41.000Z", "modified": "2025-11-04T19:12:08.838Z", "cvss": 8.1, "cvss_vector": "", "severity": "high", "epss": 0.84085, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-25681", "title": "CVE-2020-25681", "description": "A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in the way RRSets are sorted before validating with DNSSEC data. An attacker on the network, who can forge DNS replies such as that they are accepted as valid, could use this flaw to cause a buffer overflow with arbitrary data in a heap memory segment, possibly executing code on the machine. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.", "references": ["https://www.jsof-tech.com/disclosures/dnspooq/", "https://bugzilla.redhat.com/show_bug.cgi?id=1881875", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"], "fixes": ["2.83-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}, {"id": "CVE-2020-25687", "noindex": false, "published": "2021-01-20T16:31:41.000Z", "modified": "2025-11-04T19:12:15.417Z", "cvss": 5.9, "cvss_vector": "", "severity": "medium", "epss": 0.89282, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-25687", "title": "CVE-2020-25687", "description": "A flaw was found in dnsmasq before version 2.83. A heap-based buffer overflow was discovered in dnsmasq when DNSSEC is enabled and before it validates the received DNS entries. This flaw allows a remote attacker, who can create valid DNS replies, to cause an overflow in a heap-allocated memory. This flaw is caused by the lack of length checks in rfc1035.c:extract_name(), which could be abused to make the code execute memcpy() with a negative size in sort_rrset() and cause a crash in dnsmasq, resulting in a denial of service. The highest threat from this vulnerability is to system availability.", "references": ["https://www.jsof-tech.com/disclosures/dnspooq/", "https://bugzilla.redhat.com/show_bug.cgi?id=1891568", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WYW3IR6APUSKOYKL5FT3ACTIHWHGQY32/"], "fixes": ["2.83-1"], "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}]}], "total": 46, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 3, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "dnsmasq", "path": "vulns/debian-13/dnsmasq", "ecosystem": "Debian:13"}], "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": "2026-09-01T12:05:00.879Z", "early_advisories": [], "license": "Sie dürfen die Auswahl von PatchFirst und unsere Ergänzungen (Prioritäten, Frühwarnungen, Texte, Zusammenfassungen und Aggregate) für eigene Zwecke einschließlich interner geschäftlicher Aufgaben frei nutzen. Weiterverkauf, kommerzielle Verbreitung und massenhafte Spiegelung dieser Auswahl oder Ergänzungen erfordern eine schriftliche Vereinbarung mit dem Betreiber. Nennen Sie bei jeder Nutzung oder Veröffentlichung der Auswahl oder unserer Ergänzungen PatchFirst (https://patchfirst.dev/vulns/) mit diesem Link zur Feedseite Ihrer Region als Quelle. Originaleinträge aus offenen Quellen unterliegen weiterhin ihren jeweiligen Lizenzen und Bedingungen. Diese Bedingungen beschränken Ihre Rechte an den Originaldaten nicht, die Sie direkt bei den Quellen beziehen können.", "terms_url": "https://patchfirst.dev/de/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "PatchFirst wählt Einträge aus, normalisiert und kombiniert sie; Zusammenfassungen und Übersetzungen können hinzukommen. Nachrichten werden im jeweiligen Eintrag mit einem Link zur Originalquelle belegt.", "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. 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