GLSA 200712-16: Exiv2: Integer overflow

http://security.gentoo.org/

Severity:	normal
Title:	Exiv2: Integer overflow
Date:	12/29/2007
Bugs:	#202351
ID:	200712-16

Synopsis

An integer overflow vulnerability in Exiv2 possibly allows for the execution of arbitrary code.

Background

Exiv2 is a C++ library and set of tools for parsing, editing and saving Exif and IPTC metadata from images. Exif, the Exchangeable image file format, specifies the addition of metadata tags to JPEG, TIFF and RIFF files.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
media-gfx/exiv2	< 0.13-r1	>= 0.13-r1	All supported architectures

Description

Meder Kydyraliev (Google Security) discovered an integer overflow vulnerability in the JpegThumbnail::setDataArea() method leading to a heap-based buffer overflow.

Impact

An attacker could entice the user of an application making use of Exiv2 or an application included in Exiv2 to load an image file with specially crafted Exif tags, possibly resulting in the execution of arbitrary code with the privileges of the user running the application.

Workaround

There is no known workaround at this time.

Resolution

All Exiv2 users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=media-gfx/exiv2-0.13-r1"

References

CVE-2007-6353

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200712-16.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.