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.
Metrics
CVSS 3.1 5.5/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977166Issue Tracking, Third Party Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/blob/master/NEWSRelease Notes, Vendor Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/164Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5H3GNVWMZTYZR3JBYCK57PF7PFMQBNP/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BGZVCTH5O7WBJLYXZ2UOKLYNIFPVR55D/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EANWYODLOJDFLMBH6WEKJJMQ5PKLEWML/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202012-15Third Party Advisory
- https://ubuntu.com/security/CVE-2020-29385Patch, Third Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977166Issue Tracking, Third Party Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/blob/master/NEWSRelease Notes, Vendor Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/164Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B5H3GNVWMZTYZR3JBYCK57PF7PFMQBNP/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BGZVCTH5O7WBJLYXZ2UOKLYNIFPVR55D/Mailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EANWYODLOJDFLMBH6WEKJJMQ5PKLEWML/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202012-15Third Party Advisory
- https://ubuntu.com/security/CVE-2020-29385Patch, Third Party Advisory
Timeline
- Published
- Dec 26, 2020
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed