| Name | CVE-2021-43400 |
| Description | An issue was discovered in gatt-database.c in BlueZ 5.61. A use-after-free can occur when a client disconnects during D-Bus processing of a WriteValue call. |
| 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-3157-1 |
| Debian Bugs | 998626 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| bluez (PTS) | buster | 5.50-1.2~deb10u2 | vulnerable |
| buster (security) | 5.50-1.2~deb10u4 | fixed |
| bullseye (security), bullseye | 5.55-3.1+deb11u1 | vulnerable |
| bookworm, bookworm (security) | 5.66-1+deb12u1 | fixed |
| trixie | 5.71-1 | fixed |
| sid | 5.73-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| bluez | source | buster | 5.50-1.2~deb10u3 | | DLA-3157-1 | |
| bluez | source | (unstable) | 5.62-1 | | | 998626 |
Notes
[bullseye] - bluez <no-dsa> (Minor issue; can be fixed in point release)
[stretch] - bluez <ignored> (invasive patch, requires post-stretch revamps)
Introduced by: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=93b64d9ca8a2bb663e37904d4b2c702c58a36e4f (5.40)
Fixed by: https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=838c0dc7641e1c991c0f3027bf94bee4606012f8 (5.62)