GLSA 202210-28: exif: Denial of Service

http://security.gentoo.org/

Severity:	low
Title:	exif: Denial of Service
Date:	10/31/2022
Bugs:	#783522
ID:	202210-28

Synopsis

A vulnerability has been discovered in exif which could result in denial of service.

Background

libexif is a library for parsing, editing and saving Exif metadata from images. exif is a small command line interface for libexif.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/exif	< 0.6.22	>= 0.6.22	All supported architectures

Description

There is a bug in exif's XML output format which can result in a null pointer dereference when outputting crafted JPEG EXIF data.

Impact

A crafted JPEG image can trigger a denial of service in the form of a null pointer dereference.

Workaround

There is no known workaround at this time.

Resolution

All exif users should upgrade to the latest version:

          # emerge --sync
          # emerge --ask --oneshot --verbose ">=media-gfx/exif-0.6.22"

References

CVE-2021-27815

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202210-28.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.