CVE-2021-44648

GNOME gdk-pixbuf 2.42.6 is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals to 12.

GNOME gdk-pixbuf 2.42.6 is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals to 12.

GNOME gdk-pixbuf 2.42.6 is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals to 12.

The gdk-pixbuf2 packages provide an image loading library that can be extended by loadable modules for new image formats. It is used by toolkits such as GTK+ or clutter.

Security Fix(es):

• gdk-pixbuf: heap-buffer overflow when decoding the lzw compressed stream of image data (CVE-2021-44648)
• gdk-pixbuf: heap-based buffer overflow when compositing or clearing frames in GIF files (CVE-2021-46829)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

GNOME gdk-pixbuf 2.42.6 is vulnerable to a heap-buffer overflow vulnerability when decoding the lzw compressed stream of image data in GIF files with lzw minimum code size equals to 12. (CVE-2021-44648)

These are all security issues fixed in the gdk-pixbuf-devel-2.42.9-3.1 package on the GA media of openSUSE Tumbleweed.

This update for gdk-pixbuf fixes the following issues:

Update to version 2.42.9:

• CVE-2021-44648: Fixed overflow vulnerability in lzw code size (bsc#1194633).

Bugfixes:

• Fixed loading of larger images (glgo#GNOME/gdk-pixbuf#216).
• Avoided bashism in baselibs postscript (bsc#1195391).

This update for gdk-pixbuf fixes the following issues:

• CVE-2021-44648: Fixed overflow vulnerability in lzw code size (bsc#1194633).

It was discovered that GDK-PixBuf incorrectly handled certain images. An attacker could possibly use this issue to execute arbitrary code or cause a crash.