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7.8
CVSSv3

CVE-2021-46829

Published: 24/07/2022 Updated: 27/10/2022
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
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Vulnerability Summary

GNOME GdkPixbuf (aka GDK-PixBuf) prior to 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.

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gnome gdk-pixbuf

fedoraproject fedora 35

debian debian linux 11.0

Vendor Advisories

Debian Security Advisories: DSA-5228-1 gdk-pixbuf -- security update
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- ...
Red Hat:
GNOME GdkPixbuf (aka GDK-PixBuf) before 2428 allows a heap-based buffer overflow when compositing or clearing frames in GIF files, as demonstrated by io-gif-animationc composite_frame This overflow is controllable and could be abused for code execution, especially on 32-bit systems ...
Arch Linux Issues:
heap buffer overflow when composing or clearing frames in GIF files ...

Github Repositories

CVE-2021-46829 GNOME GdkPixbuf (aka GDK-PixBuf) before 2428 allows a heap-based buffer overflow when compositing or clearing frames in GIF files, as demonstrated by io-gif-animationc composite_frame This overflow is controllable and could be abused for code execution, especially on 32-bit systems authentication complexity vector not available not available not avail

References

CWE-787https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/bca00032ad68d0b0aa2c1f7558db931e52bd9cd2https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/5398f04d772f7f8baf5265715696ed88db0f0512https://www.openwall.com/lists/oss-security/2022/07/23/1https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/190https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121http://www.openwall.com/lists/oss-security/2022/07/25/1https://github.com/pedrib/PoC/blob/master/fuzzing/CVE-2021-46829/CVE-2021-46829.mdhttps://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M5IHHEYFD6GDZVALKIPPRD2U4JNZUZWR/https://www.debian.org/security/2022/dsa-5228https://github.com/Live-Hack-CVE/CVE-2021-46829https://nvd.nist.govhttps://www.debian.org/security/2022/dsa-5228
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