Ubuntu 25.04: 7615-1 critical: ClamAV denial of service

ubuntu

July 2, 2025

Several security issues were fixed in ClamAV.

Summary

Several security issues were fixed in ClamAV.

Software Description:

- clamav: Anti-virus utility for Unix

Details:

It was discovered that ClamAV incorrectly handled scanning UDF files. A

remote attacker could possibly use this issue to cause ClamAV to crash,

resulting in a denial of service. (CVE-2025-20234)

It was discovered that ClamAV incorrectly handled scanning PDF files. A

remote attacker could use this issue to cause ClamAV to crash, resulting

in a denial of service, or possibly execute arbitrary code.

(CVE-2025-20260)

Topics Covered

security advisory denial of service critical ubuntu clamav updating

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 25.04
  clamav                          1.4.3+dfsg-0ubuntu0.25.04.1

Ubuntu 24.10
  clamav                          1.4.3+dfsg-0ubuntu0.24.10.1

Ubuntu 24.04 LTS
  clamav                          1.4.3+dfsg-0ubuntu0.24.04.1

Ubuntu 22.04 LTS
  clamav                          1.4.3+dfsg-0ubuntu0.22.04.1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.