Integer Overflow or Wraparound Affecting clamav1.5-debuginfo package, versions <0:1.5.4-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.46% (38th percentile)

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  • Snyk IDSNYK-AMZN2023-CLAMAV15DEBUGINFO-19476602
  • published1 Sept 2026
  • disclosed7 Aug 2026

Introduced: 7 Aug 2026

CVE-2026-20339  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 clamav1.5-debuginfo to version 0:1.5.4-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2116.

NVD Description

Note: Versions mentioned in the description apply only to the upstream clamav1.5-debuginfo package and not the clamav1.5-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A vulnerability in the PESpin file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition or possibly other expanded impacts as a result of&nbsp;memory corruption on an affected device.

This vulnerability is due to improper boundary checks for content in PESpin files during scanning, which may result in an integer overflow. An attacker could exploit this vulnerability by submitting a crafted file that contains PESpin content to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to cause the ClamAV scanning process to terminate, resulting in a DoS condition on the affected software.

CVSS Base Scores

version 3.1