| Name | CVE-2021-44648 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| gdk-pixbuf (PTS) | stretch (security), stretch | 2.36.5-2+deb9u2 | fixed |
| buster | 2.38.1+dfsg-1 | vulnerable |
| bullseye | 2.42.2+dfsg-1 | vulnerable |
| bookworm, sid | 2.42.6+dfsg-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| gdk-pixbuf | source | stretch | (not affected) | | | |
| gdk-pixbuf | source | (unstable) | (unfixed) | | | |
Notes
[stretch] - gdk-pixbuf <not-affected> (Vulnerable code introduced later)
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/136
https://sahildhar.github.io/blogpost/GdkPixbuf-Heap-Buffer-Overflow-in-lzw_decoder_new/
Introduced by: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/b88f1ce91a610a4e491a4ad6352183791e78afac (2.39.2)