apk package
chainguard/bind-tools
pkg:apk/chainguard/bind-tools
Vulnerabilities (65)
| CVE | Sev | CVSS | KEV | Affected versions | Fixed in | Published | Description |
|---|---|---|---|---|---|---|---|
| CVE-2025-8677 | Hig | 7.5 | < 9.20.16-r0 | 9.20.16-r0 | Oct 22, 2025 | Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 thr | |
| CVE-2025-40780 | Hig | 8.6 | < 9.20.16-r0 | 9.20.16-r0 | Oct 22, 2025 | In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9. | |
| CVE-2025-40778 | Hig | 8.6 | < 9.20.16-r0 | 9.20.16-r0 | Oct 22, 2025 | Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11 | |
| CVE-2025-40777 | Hig | 7.5 | < 0 | 0 | Jul 16, 2025 | If a `named` caching resolver is configured with `serve-stale-enable` `yes`, and with `stale-answer-client-timeout` set to `0` (the only allowable value other than `disabled`), and if the resolver, in the process of resolving a query, encounters a CNAME chain involving a specific | |
| CVE-2025-40776 | Hig | 8.6 | < 0 | 0 | Jul 16, 2025 | A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1. | |
| CVE-2024-12705 | Hig | 7.5 | < 0 | 0 | Jan 29, 2025 | 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. This 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-S | |
| CVE-2024-11187 | Hig | 7.5 | < 0 | 0 | Jan 29, 2025 | 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 | |
| CVE-2024-4076 | Hig | 7.5 | < 9.18.28-r0 | 9.18.28-r0 | Jul 23, 2024 | Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure. This 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 | |
| CVE-2024-1975 | Hig | 7.5 | < 9.18.28-r0 | 9.18.28-r0 | Jul 23, 2024 | 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. This issue affects BIND 9 versions | |
| CVE-2024-1737 | Hig | 7.5 | < 9.18.28-r0 | 9.18.28-r0 | Jul 23, 2024 | 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 ver | |
| CVE-2024-0760 | Hig | 7.5 | < 9.18.28-r0 | 9.18.28-r0 | Jul 23, 2024 | 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 | |
| CVE-2023-50868 | — | < 9.18.24-r0 | 9.18.24-r0 | Feb 14, 2024 | 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 51 | ||
| CVE-2023-50387 | — | < 9.18.24-r0 | 9.18.24-r0 | Feb 14, 2024 | 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 man | ||
| CVE-2023-6516 | — | < 9.18.24-r0 | 9.18.24-r0 | Feb 13, 2024 | 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 alloc | ||
| CVE-2023-5680 | — | < 9.18.25-r0 | 9.18.25-r0 | Feb 13, 2024 | If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16. | ||
| CVE-2023-5679 | — | < 9.18.24-r0 | 9.18.24-r0 | Feb 13, 2024 | A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when both of these features are enabled. This issue affects BIND 9 versions 9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9 | ||
| CVE-2023-5517 | — | < 9.18.24-r0 | 9.18.24-r0 | Feb 13, 2024 | A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect ;` is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response | ||
| CVE-2023-4408 | — | < 9.18.24-r0 | 9.18.24-r0 | Feb 13, 2024 | 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. T | ||
| CVE-2022-3924 | — | < 9.18.11-r0 | 9.18.11-r0 | Jan 25, 2023 | This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase | ||
| CVE-2022-3736 | — | < 9.18.11-r0 | 9.18.11-r0 | Jan 25, 2023 | BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 throug |
- affected < 9.20.16-r0fixed 9.20.16-r0
Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion. This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 thr
- affected < 9.20.16-r0fixed 9.20.16-r0
In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use. This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.
- affected < 9.20.16-r0fixed 9.20.16-r0
Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11
- affected < 0fixed 0
If a `named` caching resolver is configured with `serve-stale-enable` `yes`, and with `stale-answer-client-timeout` set to `0` (the only allowable value other than `disabled`), and if the resolver, in the process of resolving a query, encounters a CNAME chain involving a specific
- affected < 0fixed 0
A `named` caching resolver that is configured to send ECS (EDNS Client Subnet) options may be vulnerable to a cache-poisoning attack. This issue affects BIND 9 versions 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S1, and 9.20.9-S1 through 9.20.10-S1.
- affected < 0fixed 0
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. This 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-S
- affected < 0fixed 0
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
- affected < 9.18.28-r0fixed 9.18.28-r0
Client queries that trigger serving stale data and that also require lookups in local authoritative zone data may result in an assertion failure. This 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
- affected < 9.18.28-r0fixed 9.18.28-r0
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. This issue affects BIND 9 versions
- affected < 9.18.28-r0fixed 9.18.28-r0
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 ver
- affected < 9.18.28-r0fixed 9.18.28-r0
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
- CVE-2023-50868Feb 14, 2024affected < 9.18.24-r0fixed 9.18.24-r0
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 51
- CVE-2023-50387Feb 14, 2024affected < 9.18.24-r0fixed 9.18.24-r0
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 man
- CVE-2023-6516Feb 13, 2024affected < 9.18.24-r0fixed 9.18.24-r0
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 alloc
- CVE-2023-5680Feb 13, 2024affected < 9.18.25-r0fixed 9.18.25-r0
If a resolver cache has a very large number of ECS records stored for the same name, the process of cleaning the cache database node for this name can significantly impair query performance. This issue affects BIND 9 versions 9.11.3-S1 through 9.11.37-S1, 9.16.8-S1 through 9.16.
- CVE-2023-5679Feb 13, 2024affected < 9.18.24-r0fixed 9.18.24-r0
A bad interaction between DNS64 and serve-stale may cause `named` to crash with an assertion failure during recursive resolution, when both of these features are enabled. This issue affects BIND 9 versions 9.16.12 through 9.16.45, 9.18.0 through 9.18.21, 9.19.0 through 9.19.19, 9
- CVE-2023-5517Feb 13, 2024affected < 9.18.24-r0fixed 9.18.24-r0
A flaw in query-handling code can cause `named` to exit prematurely with an assertion failure when: - `nxdomain-redirect ;` is configured, and - the resolver receives a PTR query for an RFC 1918 address that would normally result in an authoritative NXDOMAIN response
- CVE-2023-4408Feb 13, 2024affected < 9.18.24-r0fixed 9.18.24-r0
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. T
- CVE-2022-3924Jan 25, 2023affected < 9.18.11-r0fixed 9.18.11-r0
This issue can affect BIND 9 resolvers with `stale-answer-enable yes;` that also make use of the option `stale-answer-client-timeout`, configured with a value greater than zero. If the resolver receives many queries that require recursion, there will be a corresponding increase
- CVE-2022-3736Jan 25, 2023affected < 9.18.11-r0fixed 9.18.11-r0
BIND 9 resolver can crash when stale cache and stale answers are enabled, option `stale-answer-client-timeout` is set to a positive integer, and the resolver receives an RRSIG query. This issue affects BIND 9 versions 9.16.12 through 9.16.36, 9.18.0 through 9.18.10, 9.19.0 throug
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