Home / mailings [gentoo-announce] [ GLSA 202208-18 ] Motion: Denial of service
Posted on 11 August 2022
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Gentoo Linux Security Advisory GLSA 202208-18
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https://security.gentoo.org/
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Severity: Low
Title: Motion: Denial of service
Date: August 10, 2022
Bugs: #760714
ID: 202208-18
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Synopsis
========
A vulnerability in Motion allows a remote attacker to cause denial of
service.
Background
==========
Motion is a program that monitors the video signal from one or more
cameras and is able to detect motions.
Affected packages
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 media-video/motion < 4.3.2 >= 4.3.2
Description
===========
The Motion HTTP server does not correctly perform URL decoding. If the
HTTP server receives a request for a URL containing an incomplete
percent-encoded character, a flaw in parsing results in an infinite loop
trying to parse the rest of the character, which eventually results in a
denial of service condition when reading out-of-bounds.
Impact
======
A remote attacker can trigger a denial of service condition in Motion.
Workaround
==========
There is no known workaround at this time.
Resolution
==========
All Motion users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/motion-4.3.2"
References
==========
[ 1 ] CVE-2020-26566
https://nvd.nist.gov/vuln/detail/CVE-2020-26566
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202208-18
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 2022 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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