Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnome | Gdk-Pixbuf | < 2.42.2 |
| Canonical | Ubuntu Linux | 20.04 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977166Issue TrackingThird Party Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/blob/master/NEWSRelease NotesVendor Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/164Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202012-15Third Party Advisory
- https://ubuntu.com/security/CVE-2020-29385PatchThird Party Advisory
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=977166Issue TrackingThird Party Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/blob/master/NEWSRelease NotesVendor Advisory
- https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/164Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/202012-15Third Party Advisory
FAQ
What is CVE-2020-29385?
CVE-2020-29385 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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 th...
How severe is CVE-2020-29385?
CVE-2020-29385 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-29385?
Check the references section above for vendor advisories and patch information. Affected products include: Gnome Gdk-Pixbuf, Canonical Ubuntu Linux, Fedoraproject Fedora.