| Name | CVE-2020-18768 |
| Description | There exists one heap buffer overflow in _TIFFmemcpy in tif_unix.c in libtiff 4.0.10, which allows an attacker to cause a denial-of-service through a crafted tiff file. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-2777-1, ELA-492-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| tiff (PTS) | jessie, jessie (lts) | 4.0.3-12.3+deb8u17 | fixed |
| stretch (security) | 4.0.8-2+deb9u8 | fixed |
| stretch (lts), stretch | 4.0.8-2+deb9u12 | fixed |
| buster (security), buster, buster (lts) | 4.1.0+git191117-2~deb10u9 | fixed |
| bullseye (security), bullseye | 4.2.0-1+deb11u5 | fixed |
| bookworm (security), bookworm | 4.5.0-6+deb12u1 | fixed |
| sid, trixie | 4.5.1+git230720-5 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| tiff | source | jessie | 4.0.3-12.3+deb8u12 | | ELA-492-1 | |
| tiff | source | stretch | 4.0.8-2+deb9u7 | | DLA-2777-1 | |
| tiff | source | (unstable) | 4.0.10+git190814-1 | | | |
Notes
http://bugzilla.maptools.org/show_bug.cgi?id=2848
https://gitlab.com/libtiff/libtiff/-/merge_requests/72
Fixed by: https://gitlab.com/libtiff/libtiff/-/commit/1fb9e731ef3e4ceb7af128ce298adb271088064f (v4.1.0)