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CVE-2021-46829

HIGH

7.8

CVSS Severity Score

EPSS Score0.1170%

EPSS Percentile18.27th

PublishedJul 24, 2022

Last ModifiedNov 21, 2024

Vulnerability Description

GNOME 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.

Affected Platforms (CPE)

📦

Gnome

Gdk Pixbuf

< 2.42.8

💻

Fedoraproject

Fedora

= 35

💻

Debian

Debian Linux

= 11.0

References & Advisories

🔗 http://www.openwall.com/lists/oss-security/2022/07/25/1

🔗 https://github.com/pedrib/PoC/blob/master/fuzzing/CVE-2021-46829/CVE-2021-46829.md

🔗 https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/5398f04d772f7f8baf5265715696ed88db0f0512

🔗 https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/bca00032ad68d0b0aa2c1f7558db931e52bd9cd2

🔗 https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/190

🔗 https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121

🔗 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M5IHHEYFD6GDZVALKIPPRD2U4JNZUZWR/

🔗 https://www.debian.org/security/2022/dsa-5228

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