USN-4705-2: Sudo vulnerability

Releases

• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• sudo - Provide limited super user privileges to specific users

Details

USN-4705-1 fixed a vulnerability in Sudo. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that Sudo incorrectly handled memory when parsing command
lines. A local attacker could possibly use this issue to obtain unintended
access to the administrator account. (CVE-2021-3156)

Update instructions

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

Ubuntu 14.04

• sudo - 1.8.9p5-1ubuntu1.5+esm6

Ubuntu 12.04

• sudo - 1.8.3p1-1ubuntu3.10

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

References

• CVE-2021-3156

Related notices

• USN-4705-1: sudo, sudo-ldap