GLSA 202105-29: Tar: Denial of service

http://security.gentoo.org/

Severity:	low
Title:	Tar: Denial of service
Date:	05/26/2021
Bugs:	#778548
ID:	202105-29

Synopsis

A vulnerability in Tar could lead to a Denial of Service condition.

Background

The Tar program provides the ability to create and manipulate tar archives.

Affected packages

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

Description

It was discovered that GNU Tar had a memory leak when processing archive headers.

Impact

A remote attacker could entice a user to open a specially crafted archive using Tar, possibly resulting in a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All Tar users should upgrade to the latest version:

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

References

CVE-2021-20193

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202105-29.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.