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Gentoo: GLSA-202301-11 Low Severity: libxml Denial Of Service

gentoo
Calendar Grey August 10, 2022
Dist Gentoo Esm H88
A minor security notice for Gentoo Linux regarding a potential denial of service vulnerability in libass. Users are advised to perform an upgrade.
A vulnerability in libass could result in denial of service.

Summary

A one-byte buffer overwrite in ASS font decoding could trigger an assertion failure resulting in denial of service.

Topics%20covered

Topics Covered

security advisory denial of service gentoo low severity libass

Resolution

All libass users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-libs/libass-0.15.1"

References

[ 1 ] CVE-2020-36430 https://nvd.nist.gov/vuln/detail/CVE-2020-36430

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202208-13
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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.

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Severity: Low
Title: libass: Denial of service
Date: August 10, 2022
Bugs: #803119
ID: 202208-13

Topics%20covered

Topics Covered

security advisory denial of service gentoo low severity libass

Synopsis

A vulnerability in libass could result in denial of service.

Background

libass is a portable subtitle renderer for the ASS/SSA (Advanced Substation Alpha/Substation Alpha) subtitle format.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-libs/libass < 0.15.1 >= 0.15.1

Impact

===== An attacker with control over the ASS track input to libass via an application using it could trigger a denial of service.

Workaround

There is no known workaround at this time.

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