gdk-pixbuf security update
Security Advisory: Important
Updated gdk-pixbuf packages that fix several security flaws are now available.
The gdk-pixbuf package contains an image loading library used with the
GNOME GUI desktop environment.
[Updated 15th September 2004]
Packages have been updated to correct a bug which caused the xpm loader
to fail.
During testing of a previously fixed flaw in Qt (CAN-2004-0691), a flaw was
discovered in the BMP image processor of gdk-pixbuf. An attacker could
create a carefully crafted BMP file which would cause an application
to enter an infinite loop and not respond to user input when the file was
opened by a victim. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2004-0753 to this issue.
During a security audit, Chris Evans discovered a stack and a heap overflow
in the XPM image decoder. An attacker could create a carefully crafted XPM
file which could cause an application linked with gtk2 to crash or possibly
execute arbitrary code when the file was opened by a victim.
(CAN-2004-0782, CAN-2004-0783)
Chris Evans also discovered an integer overflow in the ICO image decoder.
An attacker could create a carefully crafted ICO file which could cause an
application linked with gtk2 to crash when the file is opened by a victim.
(CAN-2004-0788)
These packages have also been updated to correct a bug which caused the xpm
loader to fail.
Users of gdk-pixbuf are advised to upgrade to these packages, which
contain backported patches and are not vulnerable to these issues.
Before applying this update, make sure that all previously-released
errata relevant to your system have been applied. Use Red Hat
Network to download and update your packages. To launch the Red Hat
Update Agent, use the following command:
up2date
For information on how to install packages manually, refer to the
following Web page for the System Administration or Customization
guide specific to your system:
http://www.redhat.com/docs/manuals/enterprise/
Vulmon