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Gentoo: GLSA-202011-02 Normal: OpenDMARC Heap-Based Buffer Overflow

gentoo
Calendar Grey November 2, 2020
Dist Gentoo Esm H88
Gentoo Linux Security Advisory GLSA 202110-03 emphasizes a critical vulnerability in OpenVPN that may lead to unauthorized access.
A heap-based buffer overflow in OpenDMARC might allow remote attackers to execute arbitrary code.

Summary

It was found that OpenDMARC did not properly handle DMARC aggregate reports.

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow remote code execution Denial of Service normal severity OpenDMARC

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
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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: Normal
Title: OpenDMARC: Heap-based buffer overflow
Date: November 03, 2020
Bugs: #734158
ID: 202011-02

Topics%20covered

Topics Covered

security advisory gentoo buffer overflow remote code execution Denial of Service normal severity OpenDMARC

Synopsis

A heap-based buffer overflow in OpenDMARC might allow remote attackersto execute arbitrary code.

Background

OpenDMARC is an open source DMARC implementation.

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Affected Packages

------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 mail-filter/opendmarc < 1.3.3 >= 1.3.3

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.

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