[USN-8510-1] tar vulnerability

[noreply+usn-bot at canonical.com]

==========================================================================
Ubuntu Security Notice USN-8510-1
July 06, 2026

tar vulnerability
==========================================================================

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

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS

Summary:

tar could be made to overwrite files.

Software Description:
- tar: GNU tar archive utility

Details:

It was discovered that tar incorrectly handled symlinks when extracting
archives. An attacker could possibly use this issue to overwrite arbitrary
files.

Update instructions:

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

Ubuntu 26.04 LTS
  tar                             1.35+dfsg-4ubuntu0.2

Ubuntu 24.04 LTS
  tar                             1.35+dfsg-3ubuntu0.2

Ubuntu 22.04 LTS
  tar                             1.34+dfsg-1ubuntu0.1.22.04.4

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

References:
  https://ubuntu.com/security/notices/USN-8510-1
  CVE-2025-45582

Package Information:
  https://launchpad.net/ubuntu/+source/tar/1.35+dfsg-4ubuntu0.2
  https://launchpad.net/ubuntu/+source/tar/1.35+dfsg-3ubuntu0.2
  https://launchpad.net/ubuntu/+source/tar/1.34+dfsg-1ubuntu0.1.22.04.4
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