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Vigil@nce - Evince: four vulnerabilities of DVI

January 2011 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

An attacker can invite the victim to open a malicious DVI file
with Evince, in order to execute code on his computer.

Severity: 2/4

Creation date: 10/01/2011

IMPACTED PRODUCTS
 Fedora
 Mandriva Enterprise Server
 Mandriva Linux
 Red Hat Enterprise Linux
 Unix - plateform

DESCRIPTION OF THE VULNERABILITY

The Evince program displays documents in PDF, PostScript or DVI
formats. The DVI backend is impacted by four vulnerabilities.

A DVI file with a malicious VF font creates an array index
overflow in vf_load_font(). [severity:2/4; 666313, CVE-2010-2640]

A DVI file with a malicious AFM font creates a buffer overflow in
the token() function of the afmparse.c file. [severity:2/4;
666314, CVE-2010-2641]

A DVI file with a malicious PK font creates an array index
overflow in the pk_load_font() function. [severity:2/4; 666318,
CVE-2010-2642]

A DVI file with a malicious TFM font creates an integer overflow
in the tfm_load_file() function. [severity:2/4; 666321,
CVE-2010-2643]

An attacker can therefore invite the victim to open a malicious
DVI file with Evince, in order to execute code on his computer.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/Evince-four-vulnerabilities-of-DVI-10258


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