[USN-7768-1] dpkg vulnerability

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-7768-1
September 24, 2025

dpkg vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

dpkg could be made to consume disk space if it opened a specially crafted
file.

Software Description:
- dpkg: Debian package management system

Details:

It was discovered that dpkg incorrectly handled removing certain temporary
directories. An attacker could possibly use this issue to consume disk
space, leading to a denial of service.

Update instructions:

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

Ubuntu 25.04
  dpkg                            1.22.18ubuntu2.2
  libdpkg-perl                    1.22.18ubuntu2.2

Ubuntu 24.04 LTS
  dpkg                            1.22.6ubuntu6.5
  libdpkg-perl                    1.22.6ubuntu6.5

Ubuntu 22.04 LTS
  dpkg                            1.21.1ubuntu2.6
  libdpkg-perl                    1.21.1ubuntu2.6

In general, a standard system update will make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-7768-1
  CVE-2025-6297

Package Information:
  https://launchpad.net/ubuntu/+source/dpkg/1.22.18ubuntu2.2
  https://launchpad.net/ubuntu/+source/dpkg/1.22.6ubuntu6.5
  https://launchpad.net/ubuntu/+source/dpkg/1.21.1ubuntu2.6
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