Home / mailings [gentoo-announce] [ GLSA 202405-24 ] ytnef: Multiple Vulnerabilities
Posted on 08 May 2024
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Gentoo Linux Security Advisory GLSA 202405-24
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https://security.gentoo.org/
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Severity: Normal
Title: ytnef: Multiple Vulnerabilities
Date: May 08, 2024
Bugs: #774255
ID: 202405-24
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Synopsis
========
Multiple vulnerabilities have been discovered in ytnef, the worst of
which could potentially lead to remote code execution.
Background
==========
ytnef is a TNEF stream reader for reading winmail.dat files.
Affected packages
=================
Package Vulnerable Unaffected
-------------- ------------ ------------
net-mail/ytnef < 2.0 >= 2.0
Description
===========
The TNEFSubjectHandler function in lib/ytnef.c allows remote attackers
to cause a denial-of-service (and potentially code execution) due to a
double free which can be triggered via a crafted file.
The SwapWord function in lib/ytnef.c allows remote attackers to cause a
denial-of-service (and potentially code execution) due to a heap buffer
overflow which can be triggered via a crafted file.
Impact
======
Please review the referenced CVE identifiers for details.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All ytnef users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-mail/ytnef-2.0"
References
==========
[ 1 ] CVE-2021-3403
https://nvd.nist.gov/vuln/detail/CVE-2021-3403
[ 2 ] CVE-2021-3404
https://nvd.nist.gov/vuln/detail/CVE-2021-3404
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202405-24
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.
License
=======
Copyright 2024 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).
The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.
https://creativecommons.org/licenses/by-sa/2.5
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