CVE-2020-29385
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-29385
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-29385.html
Vendor advisory: arch — https://security.archlinux.org/ASA-202012-19
Vendor advisory: arch — https://security.archlinux.org/ASA-202012-20
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 2.42.2-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 2.42.2+dfsg-1 |
| debian | bullseye | fixed | 2.42.2+dfsg-1 |
| debian | forky | fixed | 2.42.2+dfsg-1 |
| debian | sid | fixed | 2.42.2+dfsg-1 |
| debian | trixie | fixed | 2.42.2+dfsg-1 |
References
Verify integrity in audit chain (admin only). AS-IS.