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Gentoo GLSA-2021-05-29: Tar Low Severity Denial Of Service Issue

gentoo
Calendar Grey May 26, 2021
Dist Gentoo Esm H88
A flaw in Tar might cause a Denial of Service issue on Gentoo systems. Please resolve this by following the most recent upgrade guidelines.
A vulnerability in Tar could lead to a Denial of Service condition.

Summary

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

Topics%20covered

Topics Covered

security advisory denial of service gentoo software update memory leak low severity tar

Resolution

All Tar users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=app-arch/tar-1.34"

References

[ 1 ] CVE-2021-20193 https://nvd.nist.gov/vuln/detail/CVE-2021-20193

Availability

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

Severity
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Severity: Low
Title: Tar: Denial of service
Date: May 26, 2021
Bugs: #778548
ID: 202105-29

Topics%20covered

Topics Covered

security advisory denial of service gentoo software update memory leak low severity tar

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.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-arch/tar < 1.34 >= 1.34

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.

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