CVE-2021-46829
HIGH
7.8
CVSS Score
Published: July 24, 2022 at 06:47 PM UTC
Updated: June 17, 2026 at 04:15 AM UTC
3 products affected across 3 vendorsDebian LinuxFedoraGdk-Pixbuf
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Severity
HIGH7.8
Exploit prediction
EPSS 0.8%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%95%
v < 2.42.8
Affected range stops below 2.42.8, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/5398f04d772f7f8baf5265715696ed88db0f0512
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/bca00032ad68d0b0aa2c1f7558db931e52bd9cd2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M5IHHEYFD6GDZVALKIPPRD2U4JNZUZWR/
- https://www.debian.org/security/2022/dsa-5228
References (9)
Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2022/07/25/1x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://github.com/pedrib/PoC/blob/master/fuzzing/CVE-2021-46829/CVE-2021-46829.mdx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/5398f04d772f7f8baf5265715696ed88db0f0512x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/bca00032ad68d0b0aa2c1f7558db931e52bd9cd2x_refsource_MISCExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/190x_refsource_MISCExploitThird Party Advisory
Source: [email protected]
https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121Vendor Advisoryx_refsource_FEDORA
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M5IHHEYFD6GDZVALKIPPRD2U4JNZUZWR/Vendor Advisoryx_refsource_DEBIANThird Party Advisory
Source: [email protected]
https://www.debian.org/security/2022/dsa-5228CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-190
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