CVE-2021-46829: debian debian_linux Integer Overflow or Wraparound
Vulnerability summary
CVE-2021-46829 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 0.80% chance of exploitation in the next 30 days, higher than 55.8% of scored vulnerabilities. 3 public exploits are recorded.
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 24-07-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.80%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.80% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
3 foundPoc
Maturity: poc
Exploit Reference (gitlab.gnome.org)
Maturity: unknown
Exploit Reference (gitlab.gnome.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Opensuse4 products
- gdk-pixbuf&distro=openSUSE Leap 15.3< 2.40.0-150200.3.6.1
- gdk-pixbuf&distro=openSUSE Leap 15.4< 2.42.8-150400.5.3.1
- gdk-pixbuf&distro=openSUSE Leap Micro 5.2< 2.40.0-150200.3.6.1
- gdk-pixbuf&distro=openSUSE Tumbleweed< 2.42.8-2.1
Suse4 products
- gdk-pixbuf&distro=SUSE Linux Enterprise Micro 5.2< 2.40.0-150200.3.6.1
- gdk-pixbuf&distro=SUSE Linux Enterprise Module for Basesystem 15 SP3< 2.40.0-150200.3.6.1
- gdk-pixbuf&distro=SUSE Linux Enterprise Module for Basesystem 15 SP4< 2.42.8-150400.5.3.1
- gdk-pixbuf&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP3< 2.40.0-150200.3.6.1
Debian2 products
- gdk-pixbuf< 2.42.8+dfsg-1
- debian_linuxEOL11.0
Fedoraproject1 product
- fedoraEOL35
Gnome1 product
- gdk-pixbuf< 2.42.8
Mageia1 product
- gdk-pixbuf2.0< 2.42.2-1.1.mga8
Ubuntu1 product
- gdk-pixbuf< 2.40.0+dfsg-3ubuntu0.3
7 vendors · 14 products
References
20 links- gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/190X Refsource MISCExploitIssue TrackingThird Party Advisory
- gitlab.gnome.org/GNOME/gdk-pixbuf/-/merge_requests/121X Refsource MISCREPORTExploitThird Party Advisory
- gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/bca00032ad68d0b0aa2c1f7558db931e52bd9cd2X Refsource MISCPatchThird Party Advisory
- gitlab.gnome.org/GNOME/gdk-pixbuf/-/commit/5398f04d772f7f8baf5265715696ed88db0f0512X Refsource MISCPatchThird Party Advisory
- github.com/pedrib/PoC/blob/master/fuzzing/CVE-2021-46829/CVE-2021-46829.mdX Refsource MISCREPORTExploitThird Party Advisory