Vulnerability Details : CVE-2021-46829
Potential exploit
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.
Vulnerability category: OverflowMemory Corruption
Products affected by CVE-2021-46829
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
- cpe:2.3:a:gnome:gdk-pixbuf:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-46829
0.41%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-46829
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2021-46829
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-46829
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M5IHHEYFD6GDZVALKIPPRD2U4JNZUZWR/
[SECURITY] Fedora 35 Update: mingw-gdk-pixbuf-2.42.8-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://www.openwall.com/lists/oss-security/2022/07/23/1
oss-security - CVE Request: heap buffer overflow in gdk-pixbufMailing List;Third Party Advisory
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https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/5398f04d772f7f8baf5265715696ed88db0f0512
Merge branch 'gif-overflow' into 'master' (5398f04d) · Commits · GNOME / gdk-pixbuf · GitLabPatch;Third Party Advisory
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https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/bca00032ad68d0b0aa2c1f7558db931e52bd9cd2
Release GdkPixbuf 2.42.8 (stable) (bca00032) · Commits · GNOME / gdk-pixbuf · GitLabPatch;Third Party Advisory
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https://www.debian.org/security/2022/dsa-5228
Debian -- Security Information -- DSA-5228-1 gdk-pixbufThird Party Advisory
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https://github.com/pedrib/PoC/blob/master/fuzzing/CVE-2021-46829/CVE-2021-46829.md
PoC/CVE-2021-46829.md at master · pedrib/PoC · GitHubExploit;Third Party Advisory
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https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/190
Buffer overwrite in io-gif-animation.c composite_frame() (possibly exploitable) (#190) · Issues · GNOME / gdk-pixbuf · GitLabExploit;Issue Tracking;Third Party Advisory
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https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121
gif: Check for overflow when compositing or clearing frames. (!121) · Merge requests · GNOME / gdk-pixbuf · GitLabExploit;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2022/07/25/1
oss-security - Re: CVE Request: heap buffer overflow in gdk-pixbufMailing List;Third Party Advisory
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