Home / mailings [gentoo-announce] [ GLSA 202011-02 ] OpenDMARC: Heap-based buffer overflow
Posted on 03 November 2020
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Gentoo Linux Security Advisory GLSA 202011-02
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https://security.gentoo.org/
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Severity: Normal
Title: OpenDMARC: Heap-based buffer overflow
Date: November 03, 2020
Bugs: #734158
ID: 202011-02
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Synopsis
========
A heap-based buffer overflow in OpenDMARC might allow remote attackers
to execute arbitrary code.
Background
==========
OpenDMARC is an open source DMARC implementation.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 mail-filter/opendmarc < 1.3.3 >= 1.3.3
Description
===========
It was found that OpenDMARC did not properly handle DMARC aggregate
reports.
Impact
======
A remote attacker, by sending a specially crafted DMARC aggregate
report, could possibly cause a Denial of Service condition and
depending on how OpenDMARC library is used in linked application
execute arbitrary code with the privileges of the process.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All OpenDMARC users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/opendmarc-1.3.3"
References
==========
[ 1 ] CVE-2020-12460
https://nvd.nist.gov/vuln/detail/CVE-2020-12460
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202011-02
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 2020 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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