USN-6018-1: Apport vulnerability

Releases

• Ubuntu 22.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• apport - automatically generate crash reports for debugging

Details

Chen Lu, Lei Wang, and YiQi Sun discovered a privilege escalation
vulnerability in apport-cli when viewing crash reports and unprivileged
users are allowed to run sudo less. A local attacker on a specially
configured system could use this to escalate their privilege.

Update instructions

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

Ubuntu 22.10

• apport - 2.23.1-0ubuntu3.2

Ubuntu 22.04

• apport - 2.20.11-0ubuntu82.4

Ubuntu 20.04

• apport - 2.20.11-0ubuntu27.26

Ubuntu 18.04

• apport - 2.20.9-0ubuntu7.29

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

References

• CVE-2023-1326
• https://launchpad.net/bugs/2016023