GNOME GdkPixbuf (aka GDK-PixBuf) before 2.42.8 allows a heap-based buffer overflow when…
Priority LOW 35CWE-190Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.00801 56th percentileScored 2026-11-08
Public exploit Yes 3 exploit referencesTagged by NVD
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gnome:gdk-pixbuf:*:*:*:*:*:*:*:* | before 2.42.8 | Vulnerable | GNOME |
| cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | 35 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:a:gnome:gdk-pixbuf:*:*:*:*:*:*:*:* Versions before 2.42.8 Vulnerable ·GNOME
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
Red Hat 1 advisory
- RHSA-2023:2216 Released 2023-05-09 · Red Hat rating Moderategdk-pixbuf2 security update
- Red Hat Enterprise Linux AppStream (v. 9) gdk-pixbuf2-2.42.6-3.el9, gdk-pixbuf2-devel-2.42.6-3.el9, gdk-pixbuf2-modules-2.42.6-3.el9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:2216 |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2021-46829
- 2026-10-03 Alias added: GHSA-xq3g-5rhc-pxgj
References
Exploit 3
Patch 2
Sources
- CVE-2021-46829 · CVE Program
- CVE-2021-46829 · NVD
- FIRST EPSS
- GHSA-xq3g-5rhc-pxgj · GitHub Advisory Database · CC BY 4.0
- CVE-2021-46829 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences