GLSA 202208-18: Motion: Denial of service

http://security.gentoo.org/

Severity:	low
Title:	Motion: Denial of service
Date:	08/10/2022
Bugs:	#760714
ID:	202208-18

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

Package	Vulnerable	Unaffected	Architecture(s)
media-video/motion	< 4.3.2	>= 4.3.2	All supported architectures

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

CVE-2020-26566

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202208-18.xml

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.