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CVE-2023-2911

Status Candidate

Overview

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. This 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.

Related Files

Ubuntu Security Notice USN-6183-2
Posted Jul 19, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6183-2 - USN-6183-1 fixed vulnerabilities in Bind. This update provides the corresponding updates for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled the cache size limit. A remote attacker could possibly use this issue to consume memory, leading to a denial of service.

tags | advisory, remote, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2023-2828, CVE-2023-2911
SHA-256 | 2e0383573a082d2e01f5cf039b883bf966625f67a482f17deab9643b98cdc6a8
Debian Security Advisory 5439-1
Posted Jun 27, 2023
Authored by Debian | Site debian.org

Debian Linux Security Advisory 5439-1 - Several vulnerabilities were discovered in BIND, a DNS server implementation.

tags | advisory, vulnerability
systems | linux, debian
advisories | CVE-2023-2828, CVE-2023-2911
SHA-256 | cc895f5c176833d74e7a3f8e0143a354220ebb5b634b336ac40ccc836c9f7e36
Ubuntu Security Notice USN-6183-1
Posted Jun 22, 2023
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 6183-1 - Shoham Danino, Anat Bremler-Barr, Yehuda Afek, and Yuval Shavitt discovered that Bind incorrectly handled the cache size limit. A remote attacker could possibly use this issue to consume memory, leading to a denial of service. It was discovered that Bind incorrectly handled the recursive-clients quota. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. This issue only affected Ubuntu 22.04 LTS, Ubuntu 22.10, and Ubuntu 23.04.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2023-2828, CVE-2023-2911
SHA-256 | 8c98b23533bb65799530876b7495994b7f2a7e5243dbe968de2fc62016d3d8e1
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