Ubuntu 23.10 USN-6543-1 Critical: tar Denial of Service Issue

ubuntu

December 11, 2023

tar could be made to crash if it opened a specially crafted file.

Summary

tar could be made to crash if it opened a specially crafted file.

Software Description:

- tar: GNU version of the tar archiving utility

Details:

It was discovered that tar incorrectly handled extended attributes in PAX

archives. An attacker could use this issue to cause tar to crash, resulting in a

denial of service.

Topics Covered

security advisory denial of service critical issue Ubuntu update instructions tar

Update Instructions

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

Ubuntu 23.10:
  tar                             1.34+dfsg-1.2ubuntu1.1

Ubuntu 23.04:
  tar                             1.34+dfsg-1.2ubuntu0.2

Ubuntu 22.04 LTS:
  tar                             1.34+dfsg-1ubuntu0.1.22.04.2

Ubuntu 20.04 LTS:
  tar                             1.30+dfsg-7ubuntu0.20.04.4

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
  tar                             1.29b-2ubuntu0.4+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
  tar                             1.28-2.1ubuntu0.2+esm3

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
  tar                             1.27.1-1ubuntu0.1+esm4

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