This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-20214 →
Categories
DEBIAN-CVE-2026-20214

A vulnerability in the FSG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other ex...

Original description

The description as published by the source.

A vulnerability in the FSG file format parser of ClamAV could allow an unauthenticated, remote attacker to cause a DoS condition, or possibly other expanded impacts, resulting from memory corruption on an affected device. This vulnerability is due to improper boundary checks for content in FSG files during scanning, which may result in an out-of-bounds buffer write. An attacker could exploit this vulnerability by submitting a crafted file that contains portable executable content compressed with FSG 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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 clamav
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13 clamav
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14 clamav
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.4.5+dfsg-1"}]}]

References

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