| 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, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-5228-1 |
| Debian Bugs | 1014600 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| gdk-pixbuf (PTS) | bullseye | 2.42.2+dfsg-1+deb11u2 | fixed |
| bullseye (security) | 2.42.2+dfsg-1+deb11u1 | fixed |
| bookworm | 2.42.10+dfsg-1+deb12u1 | fixed |
| sid, trixie | 2.42.12+dfsg-1 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - gdk-pixbuf <not-affected> (Vulnerable code introduced later)
[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)
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/130
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/76eda67dbc3f48c9dd6815a5aaf6014ea4a16771 (2.42.9)
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/0cf97225c9c227d11fc4ddf9cba8e8480672ee1b (2.42.9)
Fixed by: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/19ebba03117aefc9d0312f675f3a210ffdcc4907 (2.42.9)
Tests: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/449441210921c8ed417b0c4d5edbccd2d57e23f8 (2.42.9)