USN-1513-1: libexif vulnerabilities

Publication date

23 July 2012

Overview

libexif could be made to crash, run programs as your login, or expose sensitive information if it opened a specially crafted file.


Packages

  • libexif - library to parse EXIF files

Details

Mateusz Jurczyk discovered that libexif incorrectly parsed certain
malformed EXIF tags. If a user or automated system were tricked into
processing a specially crafted image file, an attacker could cause libexif
to crash, leading to a denial of service, or possibly obtain sensitive
information. (CVE-2012-2812, CVE-2012-2813)

Mateusz Jurczyk discovered that libexif incorrectly parsed certain
malformed EXIF tags. If a user or automated system were tricked into
processing a specially crafted image file, an attacker could cause libexif
to crash, leading to a denial of service, or possibly execute arbitrary
code. (CVE-2012-2814)

Yunho Kim discovered that libexif incorrectly parsed certain malformed EXIF
tags. If a user or automated system were tricked into processing a
specially crafted image file, an attacker could...

Mateusz Jurczyk discovered that libexif incorrectly parsed certain
malformed EXIF tags. If a user or automated system were tricked into
processing a specially crafted image file, an attacker could cause libexif
to crash, leading to a denial of service, or possibly obtain sensitive
information. (CVE-2012-2812, CVE-2012-2813)

Mateusz Jurczyk discovered that libexif incorrectly parsed certain
malformed EXIF tags. If a user or automated system were tricked into
processing a specially crafted image file, an attacker could cause libexif
to crash, leading to a denial of service, or possibly execute arbitrary
code. (CVE-2012-2814)

Yunho Kim discovered that libexif incorrectly parsed certain malformed EXIF
tags. If a user or automated system were tricked into processing a
specially crafted image file, an attacker could cause libexif to crash,
leading to a denial of service, or possibly obtain sensitive information.
(CVE-2012-2836)

Yunho Kim discovered that libexif incorrectly parsed certain malformed EXIF
tags. If a user or automated system were tricked into processing a
specially crafted image file, an attacker could cause libexif to crash,
leading to a denial of service. (CVE-2012-2837)

Dan Fandrich discovered that libexif incorrectly parsed certain malformed
EXIF tags. If a user or automated system were tricked into processing a
specially crafted image file, an attacker could cause libexif to crash,
leading to a denial of service, or possibly execute arbitrary code.
(CVE-2012-2840, CVE-2012-2841)


Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
8.04 hardy libexif12 –  0.6.16-2.1ubuntu0.2
12.04 precise libexif12 –  0.6.20-2ubuntu0.1
11.10 oneiric libexif12 –  0.6.20-1ubuntu0.1
11.04 natty libexif12 –  0.6.20-0ubuntu1.1
10.04 lucid libexif12 –  0.6.19-1ubuntu0.1

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