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CVE-2022-20792

Status Candidate

Overview

A vulnerability in the regex module used by the signature database load module of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution. The vulnerability is due to improper bounds checking that may result in a multi-byte heap buffer overwflow write. An attacker could exploit this vulnerability by placing a crafted CDB ClamAV signature database file in the ClamAV database directory. An exploit could allow the attacker to run code as the clamav user.

Related Files

Gentoo Linux Security Advisory 202310-01
Posted Oct 2, 2023
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 202310-1 - Multiple vulnerabilities have been discovered in ClamAV, the worst of which could result in remote code execution. Versions greater than or equal to 0.103.7 are affected.

tags | advisory, remote, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2022-20698, CVE-2022-20770, CVE-2022-20771, CVE-2022-20785, CVE-2022-20792, CVE-2022-20796, CVE-2022-20803, CVE-2023-20032, CVE-2023-20052
SHA-256 | ca1d69efc4a4e8857de6f7e66d60767c128e79bf7e3366220b15bc21ed14e66b
Ubuntu Security Notice USN-5423-2
Posted May 18, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5423-2 - USN-5423-1 fixed several vulnerabilities in ClamAV. This update provides the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM. Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files. A remote attacker could possibly use this issue to cause ClamAV to stop responding, resulting in a denial of service.

tags | advisory, remote, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2022-20770, CVE-2022-20771, CVE-2022-20785, CVE-2022-20792, CVE-2022-20796
SHA-256 | 8e4b8948d5e1b928c53f47538c39a5720eb5d9b54a8e9ed63566bd719e26428b
Ubuntu Security Notice USN-5423-1
Posted May 17, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5423-1 - Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files. A remote attacker could possibly use this issue to cause ClamAV to stop responding, resulting in a denial of service. Michał Dardas discovered that ClamAV incorrectly handled parsing TIFF files. A remote attacker could possibly use this issue to cause ClamAV to stop responding, resulting in a denial of service. Michał Dardas discovered that ClamAV incorrectly handled parsing HTML files. A remote attacker could possibly use this issue to cause ClamAV to consume resources, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2022-20770, CVE-2022-20771, CVE-2022-20785, CVE-2022-20792, CVE-2022-20796
SHA-256 | 8a7e6d56f5558ae8bd78cd46e08c6dd48ba55d4079f3389737d0e448d3eb3555
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