| Name | CVE-2018-7731 |
| Description | An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 892782 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| exempi (PTS) | buster | 2.5.0-2 | fixed |
| buster (security) | 2.5.0-2+deb10u1 | fixed |
| bullseye | 2.5.2-1 | fixed |
| bookworm | 2.6.3-1 | fixed |
| sid, trixie | 2.6.5-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| exempi | source | wheezy | (not affected) | | | |
| exempi | source | jessie | (not affected) | | | |
| exempi | source | (unstable) | 2.4.5-1 | low | | 892782 |
Notes
[stretch] - exempi <no-dsa> (Minor issue)
[jessie] - exempi <not-affected> (Vulnerable code introduced later)
[wheezy] - exempi <not-affected> (Vulnerable code introduced later)
https://bugs.freedesktop.org/show_bug.cgi?id=105247
https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666