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Sicherheitslücken in bind9-libs · Seite 3

In den letzten 30 Tagen veröffentlichte Sicherheitslücken für bind9-libs: 4. Davon im KEV-Katalog: 0.

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Sicherheitslücken: 47

  1. CVE-2024-1737

    Hoch · CVSS 7.5EPSS 2,11%Keine Korrektur veröffentlicht

    BIND's database will be slow if a very large number of RRs exist at the same name

    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. This 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.

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  2. CVE-2024-0760

    Hoch · CVSS 7.5EPSS 4,68%Keine Korrektur veröffentlicht

    A flood of DNS messages over TCP may make the server unstable

    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. This 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.

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  3. CVE-2023-50868

    Hoch · CVSS 7.5EPSS 74,3%Keine Korrektur veröffentlicht

    CVE-2023-50868

    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.

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  4. CVE-2023-50387

    Hoch · CVSS 7.5EPSS 99,99%Keine Korrektur veröffentlicht

    CVE-2023-50387

    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.

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  5. CVE-2023-4408

    Hoch · CVSS 7.5EPSS 1,39%Keine Korrektur veröffentlicht

    Parsing large DNS messages may cause excessive CPU load

    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. This 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.

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  6. CVE-2023-2828

    Hoch · CVSS 7.5EPSS 3,7%Keine Korrektur veröffentlicht

    named's configured cache size limit can be significantly exceeded

    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. It has been discovered that the effectiveness of the cache-cleaning

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  7. CVE-2022-2795

    Mittel · CVSS 5.3EPSS 2,29%Keine Korrektur veröffentlicht

    Processing large delegations may severely degrade resolver performance

    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.

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