USN-6005-1: Sudo vulnerabilities

Releases

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

Packages

• sudo - Provide limited super user privileges to specific users

Details

Matthieu Barjole and Victor Cutillas discovered that Sudo incorrectly
escaped control characters in log messages and sudoreplay output. An
attacker could possibly use these issues to inject terminal control
characters that alter output when being viewed.

Update instructions

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

Ubuntu 22.10

• sudo-ldap - 1.9.11p3-1ubuntu1.3
• sudo - 1.9.11p3-1ubuntu1.3

Ubuntu 22.04

• sudo-ldap - 1.9.9-1ubuntu2.4
• sudo - 1.9.9-1ubuntu2.4

Ubuntu 20.04

• sudo-ldap - 1.8.31-1ubuntu1.5
• sudo - 1.8.31-1ubuntu1.5

Ubuntu 18.04

• sudo-ldap - 1.8.21p2-3ubuntu1.6
• sudo - 1.8.21p2-3ubuntu1.6

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

References

• CVE-2023-28486
• CVE-2023-28487

Related notices

• USN-6005-2: sudo-ldap, sudo