Vulnerability · Published Oct 15, 2020 · Assigned by mitre
CVE-2020-27153
High 8.6
In plain English
A high-severity double free in the bluez-libs-devel package (AlmaLinux). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.3% (higher than 91% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.6High
Exploit odds (30 days)4.3%top 8.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | bluez-libs-devel | 5.52-4.el8.alma | ALSA-2021:1598 |
| Debian:12 | bluez | 5.55-1 | DEBIAN-CVE-2020-27153 |
| Debian:13 | bluez | 5.55-1 | DEBIAN-CVE-2020-27153 |
| Debian:14 | bluez | 5.55-1 | DEBIAN-CVE-2020-27153 |
| Rocky Linux:8 | bluez | 0:5.52-4.el8 | RLSA-2021:1598 |
Affected products (as reported)
Weakness: CWE-415 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
References
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07 x_refsource_MISC
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721a x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817 x_refsource_MISC
- [debian-lts-announce] 20201021 [SECURITY] [DLA 2410-1] bluez security update mailing-list, x_refsource_MLIST
- GLSA-202011-01 vendor-advisory, x_refsource_GENTOO
- openSUSE-SU-2020:1876 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:1880 vendor-advisory, x_refsource_SUSE
- DSA-4951 vendor-advisory, x_refsource_DEBIAN