Description
A heap-based buffer overflow flaw was found in the way libtiff processed
certain TIFF images using the Pixar Log Format encoding. An attacker could
create a specially-crafted TIFF file that, when opened, could cause an
application using libtiff to crash or, possibly, execute arbitrary code
with the privileges of the user running the application. (CVE-2012-4447)
A stack-based buffer overflow flaw was found in the way libtiff handled
DOTRANGE tags. An attacker could use this flaw to create a
specially-crafted TIFF file that, when opened, would cause an application
linked against libtiff to crash or, possibly, execute arbitrary code.
(CVE-2012-5581)
A heap-based buffer overflow flaw was found in the tiff2pdf tool. An
attacker could use this flaw to create a specially-crafted TIFF file that
would cause tiff2pdf to crash or, possibly, execute arbitrary code.
(CVE-2012-3401)
A missing return value check flaw, leading to a heap-based buffer overflow,
was found in the ppm2tiff tool. An attacker could use this flaw to create a
specially-crafted PPM (Portable Pixel Map) file that would cause ppm2tiff
to crash or, possibly, execute arbitrary code. (CVE-2012-4564)
The CVE-2012-5581, CVE-2012-3401, and CVE-2012-4564 issues were discovered
by Huzaifa Sidhpurwala of the Red Hat Security Response Team.