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Debian Security Advisory DSA-5228-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
September 11, 2022                    https://www.debian.org/security/faq
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Package        : gdk-pixbuf
CVE ID         : CVE-2021-44648 CVE-2021-46829
Debian Bug     : 1014600

Several vulnerabilities were discovered in gdk-pixbuf, the GDK
Pixbuf library.

CVE-2021-44648

    Sahil Dhar reported a heap-based buffer overflow vulnerability when
    decoding the lzw compressed stream of image data, which may result
    in the execution of arbitrary code or denial of service if a
    malformed GIF image is processed.

CVE-2021-46829

    Pedro Ribeiro reported a heap-based buffer overflow vulnerability
    when compositing or clearing frames in GIF files, which may result
    in the execution of arbitrary code or denial of service if a
    malformed GIF image is processed.

For the stable distribution (bullseye), these problems have been fixed in
version 2.42.2+dfsg-1+deb11u1.

We recommend that you upgrade your gdk-pixbuf packages.

For the detailed security status of gdk-pixbuf please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/source-package/gdk-pixbuf

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org