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Vigil@nce: imlib2, memory corruption via XPM

November 2008 by Vigil@nce

An attacker can create a malicious XPM image in order to corrupt
the memory of applications linked with imlib2.

 Gravity: 2/4
 Consequences: user access/rights, denial of service of service
 Provenance: document
 Means of attack: 1 attack
 Ability of attacker: technician (2/4)
 Confidence: confirmed by the editor (5/5)
 Diffusion of the vulnerable configuration: high (3/3)
 Creation date: 20/11/2008

IMPACTED PRODUCTS

 Fedora
 Unix - plateform

DESCRIPTION

The imlib2 library handles the display and the conversion of
images.

The modules/loaders/loader_xpm.c file loads images in the XPM
format. However, if the image contains more data than announced in
its header, a memory corruption occurs.

An attacker can therefore create a malicious XPM image in order to
create a denial of service or to execute code in applications
linked with imlib2.

CHARACTERISTICS

 Identifiers: 505714, BID-32371, CVE-2008-5187, FEDORA-2008-10287,
FEDORA-2008-10296, FEDORA-2008-10364, VIGILANCE-VUL-8263
 Url: http://vigilance.fr/vulnerability/8263


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