CVE-2025-40777

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 combination of cached or...

CVE-2025-40777

Summary: CVE-2025-40777 affects ISC BIND 9 where a named caching resolver configured with serve-stale-enable=yes and stale-answer-client-timeout=0 can abort due to an assertion failure while resolving a CNAME chain. Affected versions include BIND 9.20.0–9.20.10, 9.21.0–9.21.9, and 9.20.9-S1–9.20....

CVE-2025-40777

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 combination of cached or...

CVE-2025-40776

CVE-2025-40776 affects ISC BIND named caching resolvers that are configured to send EDNS Client Subnet (ECS) options. The vulnerability is a potential cache-poisoning issue in the resolver when ECS is present. Affected BIND 9 versions are 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.37-S...

CVE-2025-40776

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-2025-40776 Birthday Attack against Resolvers supporting ECS

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...

PT-2025-29825 · Isc · Bind

Name of the Vulnerable Software and Affected Versions: BIND 9 versions 9.11.3-S1 through 9.16.50-S1 BIND 9 versions 9.18.11-S1 through 9.18.37-S1 BIND 9 versions 9.20.9-S1 through 9.20.10-S1 Description: A named caching resolver configured to send ECS EDNS Client Subnet options may be vulnerable ...

Azure Linux 3.0 Security Update: bind (CVE-2024-11187)

The version of bind installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-11187 advisory. - It is possible to construct a zone such that some queries to it will generate responses containing numerous...

TencentOS Server 3: bind9.16 (TSSA-2023:0240)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2023:0240 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

TencentOS Server 2: bind (TSSA-2024:0412)

The version of Tencent Linux installed on the remote TencentOS Server 2 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0412 advisory. Package updates are available for TencentOS Server 2 that fix the following vulnerabilities...

PT-2025-22347 · Isc +3 · Bind 9 +3

Name of the Vulnerable Software and Affected Versions: BIND 9 versions 9.20.0 through 9.20.8 BIND 9 versions 9.21.0 through 9.21.7 Description: When an incoming DNS protocol message includes a Transaction Signature TSIG, BIND always checks it. If the TSIG contains an invalid value in the algorith...

Alibaba Cloud Linux 3 : 0126: bind (ALINUX3-SA-2023:0126)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by a vulnerability as referenced in the ALINUX3-SA-2023:0126 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2023-3341: The code that processes control...

Azure Linux 3.0 Security Update: bind (CVE-2024-4076)

The version of bind installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2024-4076 advisory. - Client queries that trigger serving stale data and that also require lookups in local authoritative zone data M...

Important: bind

Issue Overview: 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-2024-11187

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...

CVE-2024-12705 DNS-over-HTTPS implementation suffers from multiple issues under heavy query load

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-S1...

CVE-2024-12705

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-S1...

CVE-2024-11187

CVE-2024-11187 is a BIND DNS vulnerability in which crafted queries can force the server or a resolver to exhaust CPU/memory by returning many records in the Additional section. Affected BIND versions include 9.11.0–9.11.37, 9.16.0–9.16.50, 9.18.0–9.18.32, 9.20.0–9.20.4, 9.21.0–9.21.3, and relate...

CVE-2024-11187

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...

CVE-2024-11187 Many records in the additional section cause CPU exhaustion

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...