CVE-2022-20792

Publication date 7 May 2022

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

7.8 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
clamav 22.10 kinetic
Fixed 0.103.6+dfsg-1ubuntu1
22.04 LTS jammy
Fixed 0.103.6+dfsg-0ubuntu0.22.04.1
21.10 impish
Fixed 0.103.6+dfsg-0ubuntu0.21.10.1
20.04 LTS focal
Fixed 0.103.6+dfsg-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 0.103.6+dfsg-0ubuntu0.18.04.1
16.04 LTS xenial
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references