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CVE-2022-38177

Status Candidate

Overview

By spoofing the target resolver with responses that have a malformed ECDSA signature, an attacker can trigger a small memory leak. It is possible to gradually erode available memory to the point where named crashes for lack of resources.

Related Files

Ubuntu Security Notice USN-5626-2
Posted Sep 22, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5626-2 - USN-5626-1 fixed several vulnerabilities in Bind. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker could possibly use this issue to reduce performance, leading to a denial of service.

tags | advisory, remote, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-2795, CVE-2022-38177
SHA-256 | 5582262f24a0e94484485b69255a623685abc83599ef59c31512503b78e7393c
Ubuntu Security Notice USN-5626-1
Posted Sep 21, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5626-1 - Yehuda Afek, Anat Bremler-Barr, and Shani Stajnrod discovered that Bind incorrectly handled large delegations. A remote attacker could possibly use this issue to reduce performance, leading to a denial of service. It was discovered that Bind incorrectly handled statistics requests. A remote attacker could possibly use this issue to obtain sensitive memory contents, or cause a denial of service. This issue only affected Ubuntu 22.04 LTS.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2022-2795, CVE-2022-2881, CVE-2022-2906, CVE-2022-3080, CVE-2022-38177, CVE-2022-38178
SHA-256 | 34b2988765657bb9a18a6b8e41a326b6235943782ca9236238e2273ea984abd6
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