What is the severity of CVE-2022-20792?

CVE-2022-20792 has a severity rating of 7.8 (high).

How do I fix CVE-2022-20792?

To fix CVE-2022-20792, users should update to ClamAV versions 0.104.3 or later, or LTS version 0.103.6 or later.

Where can I find more information about CVE-2022-20792?

More information about CVE-2022-20792 can be found on the ClamAV blog and the Gentoo Security website.

Vulnerability/
CVE-2022-20792

high

7.8

CWE

787 125

10/8/2022

1/10/2023

CVE-2022-20792

Q: What is CVE-2022-20792?

CVE-2022-20792 is 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.

Q: How does CVE-2022-20792 affect Clam AntiVirus?

CVE-2022-20792 could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution.

First published: Wed Aug 10 2022(Updated: )

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.

Credit: ykramarz@cisco.com ykramarz@cisco.com

Affected Software	Affected Version	How to fix
Clamav Clamav	<=0.103.5
Clamav Clamav	>=0.104.0<=0.104.2

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Reference Links

Frequently Asked Questions

What is CVE-2022-20792?
CVE-2022-20792 is 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.
How does CVE-2022-20792 affect Clam AntiVirus?
CVE-2022-20792 could allow an authenticated, local attacker to crash ClamAV at database load time, and possibly gain code execution.
What is the severity of CVE-2022-20792?
CVE-2022-20792 has a severity rating of 7.8 (high).
How do I fix CVE-2022-20792?
To fix CVE-2022-20792, users should update to ClamAV versions 0.104.3 or later, or LTS version 0.103.6 or later.
Where can I find more information about CVE-2022-20792?
More information about CVE-2022-20792 can be found on the ClamAV blog and the Gentoo Security website.

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version/clamav clamav/0.103.5
version/clamav clamav/0.104.0
version/clamav clamav/0.104.2

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