CVE catalog
CVE-2021-20240
gdk-pixbuf: CVE-2021-20240
- Severity
- High · CVSS 8.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.35% · Oct 25, 2026
A flaw was found in gdk-pixbuf in versions before 2.42.0. An integer wraparound leading to an out of bounds write can occur when a crafted GIF image is loaded. An attacker may cause applications to crash or could potentially execute code on the victim system. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gdk-pixbuf | sid | 2.44.8+dfsg-1 | fixed |
| Debian | gdk-pixbuf | forky | 2.44.8+dfsg-1 | fixed |
| Debian | gdk-pixbuf | trixie | 2.42.12+dfsg-4+deb13u1 | fixed |
| Debian | gdk-pixbuf | trixie-security | 2.42.12+dfsg-4+deb13u1 | fixed |
| Debian | gdk-pixbuf | bookworm | 2.42.10+dfsg-1+deb12u4 | fixed |
| Debian | gdk-pixbuf | bookworm-security | 2.42.10+dfsg-1+deb12u4 | fixed |
| Alpine | gdk-pixbuf | 3.11 | 2.40.0-r1 | fixed |
| Alpine | gdk-pixbuf | 3.12 | 2.40.0-r3 | fixed |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-1build1 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-2 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-3 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-3ubuntu0.1 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-3ubuntu0.2 | fixed |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-1build1 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-1ubuntu1 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-2 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-3 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-3ubuntu0.1 | vulnerable |
| Ubuntu | gdk-pixbuf | 20.04 | 2.40.0+dfsg-3ubuntu0.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gdk-pixbuf | source | sid | 2.42.2+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | gdk-pixbuf | source | forky | 2.42.2+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | gdk-pixbuf | source | trixie | 2.42.2+dfsg-1 | not yet assigned | Not reported | Not reported |
| Debian | gdk-pixbuf | source | bookworm | 2.42.2+dfsg-1 | not yet assigned | Not reported | Not reported |
| Alpine | gdk-pixbuf | apk | 3.11 | 2.40.0-r1 | Not reported | ALPINE-CVE-2021-20240 | Not reported |
| Alpine | gdk-pixbuf | apk | 3.12 | 2.40.0-r3 | Not reported | ALPINE-CVE-2021-20240 | Not reported |
| Ubuntu | gdk-pixbuf | deb | 20.04 | 2.40.0+dfsg-3ubuntu0.2 | Not reported | UBUNTU-CVE-2021-20240 | Not reported |
| Ubuntu | gdk-pixbuf | deb | 20.04 | 2.40.0+dfsg-3ubuntu0.2 | Not reported | USN-4743-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [gdk-pixbuf-tests]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· amd64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· amd64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
- [gir1.2-gdkpixbuf-2.0]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· amd64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· amd64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
- [libgdk-pixbuf-2.0-0]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· amd64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· amd64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
- [libgdk-pixbuf2.0-bin]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· amd64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· amd64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
- [libgdk-pixbuf2.0-common]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· all · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· all · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· all · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· all · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
- [libgdk-pixbuf-2.0-dev]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· amd64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· amd64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· arm64 · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
- [libgdk-pixbuf2.0-doc]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.10+dfsg-1+deb12u4· all · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· all · bookwormFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· all · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
2.42.10+dfsg-1+deb12u4· all · bookworm-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · bookworm; dsa · gdk-pixbuf · debian · 12
[Debian 13 (Trixie)]
- [gdk-pixbuf-tests]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· amd64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
- [gir1.2-gdkpixbuf-2.0]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· amd64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
- [libgdk-pixbuf-2.0-0]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· amd64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
- [libgdk-pixbuf2.0-bin]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· amd64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
- [libgdk-pixbuf2.0-common]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· all · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· all · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· all · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· all · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
- [libgdk-pixbuf-2.0-dev]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· amd64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· amd64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· arm64 · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
- [libgdk-pixbuf2.0-doc]Unknown
Source package: [gdk-pixbuf]
Details (4)
2.42.12+dfsg-4+deb13u1· all · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· all · trixieFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· all · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
2.42.12+dfsg-4+deb13u1· all · trixie-securityFixed · Fixed:
2.42.2+dfsg-1dsa · gdk-pixbuf · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/ALPINE-CVE-2021-20240]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-20240]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-20240]
- [https://osv.dev/vulnerability/USN-4743-1]
- [https://security-tracker.debian.org/tracker/CVE-2021-20240]
- [https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-20240.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]