An exif security update has been released for Gentoo Linux.

GLSA 202210-28 : exif: Denial of Service

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Gentoo Linux Security Advisory GLSA 202210-28
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  https://security.gentoo.org/
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Severity: Low
Title: exif: Denial of Service
Date: October 31, 2022
Bugs: #783522
ID: 202210-28

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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
-------------------------------------------------------------------
1 media-gfx/exif < 0.6.22 >= 0.6.22

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
=========
[ 1 ] CVE-2021-27815
  https://nvd.nist.gov/vuln/detail/CVE-2021-27815

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  https://security.gentoo.org/glsa/202210-28

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