CVE-2024-20505: clamav Out-of-bounds Read — Fix

Description

A vulnerability in the PDF parsing module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an out of bounds read. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. An exploit could allow the attacker to terminate the scanning process.

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CVSS v3.1 Score

4.0

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-125 Out-of-bounds Read

Affected Products

Vendor	Product	Versions
clamav	clamav	< 0.103.12
clamav	clamav	0.104.0 — 1.0.7
clamav	clamav	1.2.0 — 1.3.2
clamav	clamav	All

References

Advisories & Patches

https://blog.clamav.net/2024/09/clamav-141-132-107-and-010312-security.html

Other References

https://lists.debian.org/debian-lts-announce/2024/12/msg00004.html

Frequently Asked Questions

What is CVE-2024-20505? +

A vulnerability in the PDF parsing module of Clam AntiVirus (ClamAV) versions 1.4.0, 1.3.2 and prior versions, all 1.2.x versions, 1.0.6 and prior versions, all 0.105.x versions, all 0.104.x versions, and 0.103.11 and all prior versions could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to an out of bounds read. An attacker could exploit this vulnerability by submitting a crafted PDF file to be scanned by ClamAV on an affected device. An exploit could allow the attacker to terminate the scanning process. It has a CVSS v3.1 base score of 4.0 (MEDIUM).

How severe is CVE-2024-20505? +

CVE-2024-20505 has a CVSS v3.1 score of 4.0 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-20505? +

CVE-2024-20505 affects products from clamav, specifically: clamav. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-20505? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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