CVE-2020-27153
bluez - security update
8.6
HIGH
CVSS 3.1
EPSS 2.3%
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.
How to fix CVE-2020-27153
To remediate CVE-2020-27153, upgrade the affected package to a fixed version below.
- Alpine/bluez—upgrade to 5.50-r5 or later
- —upgrade to 5.55-1 or later
- —upgrade to 5.43-2+deb9u3 or later
Is CVE-2020-27153 being exploited?
Low — EPSS is 2.3%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 5.50-r5
- from 0, < 5.55-1
- from 0, < 5.43-2+deb9u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H |