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No exploitation reportedFix available

CVE-2020-29385

No exploitation reported by the sources we read.

  • Published2020-12-26
  • WeaknessCWE-835

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.

Timeline

dates in UTC
  1. 2020-12-2602:15CVE publishedNVD

Versions per branch

NVD
Canonical ubuntu linux
BranchAffectedFixed in
20.4= 20.04no fix published
20.10= 20.10no fix published
Fedoraproject fedora
BranchAffectedFixed in
33.x= 33no fix published
34.x= 34no fix published
Gnome gdk-pixbuf
BranchAffectedFixed in
2.x> 2.39.2, < 2.42.22.42.2

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • gdk-pixbufUbuntu:20.04:LTSall versions · fixed in 2.40.0+dfsg-3ubuntu0.1
  • gdk-pixbufSUSE:Linux Enterprise Module for Desktop Applications 15 SP2all versions · fixed in 2.40.0-3.3.1
  • gdk-pixbufSUSE:Linux Enterprise Module for Basesystem 15 SP2all versions · fixed in 2.40.0-3.3.1
  • gdk-pixbufopenSUSE:Tumbleweedall versions · fixed in 2.42.6-3.2
  • gdk-pixbufopenSUSE:Leap 15.2all versions · fixed in 2.40.0-lp152.2.3.1
  • gdk-pixbufDebian:14all versions · fixed in 2.42.2+dfsg-1
  • gdk-pixbufDebian:13all versions · fixed in 2.42.2+dfsg-1
  • gdk-pixbufDebian:12all versions · fixed in 2.42.2+dfsg-1

16 more package ranges on OSV.dev

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
2020-12-26
Last Modified
2026-06-17
NVD status
Analyzed
GitHub Advisory
GHSA-wf85-g3p6-xf4h

Frequently asked questions

What is CVE-2020-29385?

GNOME gdk-pixbuf (aka GdkPixbuf) before 2.42.2 allows a denial of service (infinite loop) in lzw.c in the function write_indexes. if c->self_code equals 10, self->code_table[10].extends will assign the value 11 to c. The next execution in the loop will assign self->code_table[11].extends to c, which will give the value of 10. This will make the loop run infinitely. This bug can, for example, be triggered by calling this function with a GIF image with LZW compression that is crafted in a special way.

Is CVE-2020-29385 actively exploited?

Active exploitation of CVE-2020-29385 has not been confirmed. Its EPSS score was 1.5% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2020-29385?

CVE-2020-29385 has a CVSS v3 base score of 5.5 (MEDIUM severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

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