ELA-1511-1 clamav security update

buffer overflow

2025-09-04
Packageclamav
Version1.0.9+dfsg-1~deb9u1 (stretch), 1.0.9+dfsg-1~deb10u1 (buster)
Related CVEs CVE-2025-20128 CVE-2025-20260


A couple of vulnerabilities have been fixed in ClamAV, an anti-virus utility for Unix, in this new upstream stable release.

CVE-2025-20128

The Object Linking and Embedding 2 (OLE2) decryption routine of ClamAV
could allow an unauthenticated, remote attacker to cause a denial of service
(DoS) condition on an affected device.

CVE-2025-20260

The PDF scanning processes of ClamAV could allow an unauthenticated, remote
attacker to cause a buffer overflow condition, cause a denial of service (DoS)
condition, or execute arbitrary code on an affected device.


For Debian 10 buster, these problems have been fixed in version 1.0.9+dfsg-1~deb10u1.

For Debian 9 stretch, these problems have been fixed in version 1.0.9+dfsg-1~deb9u1.

We recommend that you upgrade your clamav packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.