CVE-2021-46829
Published: 24 July 2022
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.
Notes
| Author | Note |
|---|---|
| alexmurray | as per advisory, affects versions <= 2.42.6 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
gdk-pixbuf Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Released
(2.40.0+dfsg-3ubuntu0.3)
|
|
| jammy |
Not vulnerable
(2.42.8+dfsg-1)
|
|
| kinetic |
Not vulnerable
(2.42.8+dfsg-1)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Not vulnerable
(2.42.8+dfsg-1)
|
|
| xenial |
Not vulnerable
(code not present)
|
|
|
Patches: upstream: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121/diffs upstream: https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/6976bdc8ee9dd2c2954f91066f7b0f643769a379 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-46829
- https://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/-/merge_requests/121
- https://ubuntu.com/security/notices/USN-5554-1
- NVD
- Launchpad
- Debian