CVE-2021-44648

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 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)	buster	2.38.1+dfsg-1	fixed
	bullseye (security), bullseye	2.42.2+dfsg-1+deb11u1	fixed
	bookworm, sid	2.42.10+dfsg-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
gdk-pixbuf	source	stretch	(not affected)
gdk-pixbuf	source	buster	(not affected)
gdk-pixbuf	source	bullseye	2.42.2+dfsg-1+deb11u1	DSA-5228-1
gdk-pixbuf	source	(unstable)	2.42.9+dfsg-1		1014600

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)