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Vigil@nce - LibTIFF: denial of service via Lines

November 2015 by Vigil@nce

This bulletin was written by Vigil@nce : http://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can create a malicious image, and send it to an
application linked to LibTIFF, in order to trigger a denial of
service.

Impacted products: LibTIFF.

Severity: 2/4.

Creation date: 24/09/2015.

DESCRIPTION OF THE VULNERABILITY

The LibTIFF library allocates memory (number of lines by number of
rows) to store images.

However, if the number of lines of an image is very large, LibTIFF
does not forbid the huge memory allocation, which leads to a large
memory consumption, and possibly to the application being killed
by OOM-Killer (Out Of Memory).

An attacker can therefore create a malicious image, and send it to
an application linked to LibTIFF, in order to trigger a denial of
service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/LibTIFF-denial-of-service-via-Lines-17966


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