USN-6719-2: util-linux vulnerability

Releases

• Ubuntu 23.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• util-linux - miscellaneous system utilities

Details

USN-6719-1 fixed a vulnerability in util-linux. Unfortunately, it was
discovered that the fix did not fully address the issue. This update
removes the setgid permission bit from the wall and write utilities.

Original advisory details:

Skyler Ferrante discovered that the util-linux wall command did not filter
escape sequences from command line arguments. A local attacker could
possibly use this issue to obtain sensitive information.

Update instructions

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

Ubuntu 23.10

• util-linux - 2.39.1-4ubuntu2.2

Ubuntu 22.04

• util-linux - 2.37.2-4ubuntu3.4

Ubuntu 20.04

• util-linux - 2.34-0.1ubuntu9.6

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

References

• CVE-2024-28085

Related notices

• USN-6719-1: uuid-runtime, libuuid1, util-linux, util-linux-extra, libmount-dev, bsdextrautils, eject, mount, libfdisk1, libblkid-dev, fdisk, libmount1, libfdisk-dev, libsmartcols-dev, rfkill, bsdutils, util-linux-locales, libblkid1, uuid-dev, libsmartcols1