CVE-2021-46829

NameCVE-2021-46829
DescriptionGNOME GdkPixbuf (aka GDK-PixBuf) before 2.42.8 allows a heap-based buffer overflow when compositing or clearing frames in GIF files, as demonstrated by io-gif-animation.c composite_frame. This overflow is controllable and could be abused for code execution, especially on 32-bit systems.
SourceCVE (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)
ReferencesDSA-5228-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
gdk-pixbuf (PTS)buster2.38.1+dfsg-1fixed
bullseye2.42.2+dfsg-1vulnerable
bullseye (security)2.42.2+dfsg-1+deb11u1fixed
bookworm, sid2.42.9+dfsg-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
gdk-pixbufsourcebuster(not affected)
gdk-pixbufsourcebullseye2.42.2+dfsg-1+deb11u1DSA-5228-1
gdk-pixbufsource(unstable)2.42.8+dfsg-1

Notes

[buster] - gdk-pixbuf <not-affected> (Vulnerable code not present; GIF animation support added later)
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/190
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/6976bdc8ee9dd2c2954f91066f7b0f643769a379 (2.42.8)
https://www.openwall.com/lists/oss-security/2022/07/23/1
http://www.openwall.com/lists/oss-security/2022/07/25/1

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