| Name | CVE-2020-27153 |
| Description | In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event. |
| 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-2410-1, DSA-4951-1, ELA-301-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| bluez (PTS) | jessie, jessie (lts) | 5.43-2+deb9u2~deb8u6 | fixed |
| stretch (security) | 5.43-2+deb9u5 | fixed | |
| stretch (lts), stretch | 5.43-2+deb9u8 | fixed | |
| buster, buster (lts) | 5.50-1.2~deb10u6 | fixed | |
| buster (security) | 5.50-1.2~deb10u5 | fixed | |
| bullseye | 5.55-3.1+deb11u1 | fixed | |
| bullseye (security) | 5.55-3.1+deb11u2 | fixed | |
| bookworm | 5.66-1+deb12u2 | fixed | |
| bookworm (security) | 5.66-1+deb12u1 | fixed | |
| sid, trixie | 5.79-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| bluez | source | jessie | 5.43-2+deb9u2~deb8u2 | ELA-301-1 | ||
| bluez | source | stretch | 5.43-2+deb9u3 | DLA-2410-1 | ||
| bluez | source | buster | 5.50-1.2~deb10u2 | DSA-4951-1 | ||
| bluez | source | (unstable) | 5.55-1 |
https://bugzilla.redhat.com/show_bug.cgi?id=1884817
https://git.kernel.org/pub/scm/bluetooth/bluez.git/commit/?id=1cd644db8c23a2f530ddb93cebed7dacc5f5721a