An integer overflow vulnerability was found in the parser for TFM
font files, which are used for rendering DVI files, in the GNOME
evince document viewer that can lead to local or remote code execution.
Due to insufficient checks on the value of an integer used as the size
for a memory allocation, it's possible to write data beyond the bounds
of the allocated memory and overwrite a function pointer, leading to
Common Vulnerabilities and Exposures assigned an identifier CVE-2010-2643 to
The vulnerability is present in the code that handles loading of fonts used by
DVI files.To exploit you need two files, a DVI file and the malicious font.
The vulnerability is triggered not only by opening the document in evince, but
also by browsing to a folder which contains the malicious files, where evince
thumbnailer will load the malicious file to generate a thumbnail for it.
Red Hat would like to thank the Evince development team for reporting this issue. Upstream acknowledges Jon Larimer of IBM X-Force as the original reporter.
Created evince tracking bugs for this issue
Affects: fedora-all [bug 667573]
This issue has been addressed in following products:
Red Hat Enterprise Linux 6
Via RHSA-2011:0009 https://rhn.redhat.com/errata/RHSA-2011-0009.html
This issue did not affect the versions of evince as shipped with Red Hat
Enterprise Linux 5.