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Gentoo Linux Security Advisory GLSA 202401-22
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https://security.gentoo.org/
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Severity: Normal
Title: libspf2: Multiple vulnerabilities
Date: January 15, 2024
Bugs: #807739
ID: 202401-22
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Synopsis
========
Multiple vulnerabilities have been discovered in libspf2, the worst of
which can lead to remote code execution.
Background
==========
libspf2 is a library that implements the Sender Policy Framework,
allowing mail transfer agents to make sure that an email is authorized
by the domain name that it is coming from.
Affected packages
=================
Package Vulnerable Unaffected
------------------- ------------ ------------
mail-filter/libspf2 < 1.2.11 >= 1.2.11
Description
===========
Multiple vulnerabilities have been discovered in libspf2. Please review
the CVE identifiers referenced below for details.
Impact
======
Various buffer overflows have been identified that can lead to denial of
service and possibly arbitrary code execution.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All libspf2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/libspf2-1.2.11"
References
==========
[ 1 ] CVE-2021-20314
https://nvd.nist.gov/vuln/detail/CVE-2021-20314
[ 2 ] CVE-2021-33912
https://nvd.nist.gov/vuln/detail/CVE-2021-33912
[ 3 ] CVE-2021-33913
https://nvd.nist.gov/vuln/detail/CVE-2021-33913
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202401-22
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
secur...@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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