GLSA 202402-12: GNU Tar: Out of Bounds Read

http://security.gentoo.org/

Severity:	high
Title:	GNU Tar: Out of Bounds Read
Date:	02/18/2024
Bugs:	#898176
ID:	202402-12

Synopsis

A vulnerability has been discovered in GNU Tar which may lead to an out of bounds read.

Background

The GNU Tar program provides the ability to create tar archives, as well as various other kinds of manipulation.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-arch/tar	< 1.34-r3	>= 1.34-r3	All supported architectures

Description

A vulnerability have been discovered in GNU Tar. Please review the CVE identifier referenced below for details.

Impact

GNU Tar has a one-byte out-of-bounds read that results in use of uninitialized memory for a conditional jump. Exploitation to change the flow of control has not been demonstrated. The issue occurs via a V7 archive in which mtime has approximately 11 whitespace characters.

Workaround

There is no known workaround at this time.

Resolution

All GNU Tar users should upgrade to the latest version:

          # emerge --sync
          # emerge --ask --oneshot --verbose ">=app-arch/tar-1.34-r3"

References

CVE-2022-48303

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202402-12.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.