UBUNTU-CVE-2020-27153

Advisory lineage Upstream: 1 Downstream: 2
Upstream
CVE-2020-27153
Published: 15 Oct 2020, 03:15
Last modified:27 Apr 2026, 09:10

Vulnerability Summary

Overall Risk (default)
medium
34/100
CVSS Score
8.6 HIGH
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 Oct 2020, 03:15
Published
Vulnerability first disclosed
27 Apr 2026, 09:10
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected Systems

  • ubuntu•bluez

    < 5.37-0ubuntu5.3+esm1 | < 5.48-0ubuntu3.5 | < 5.53-0ubuntu3.2

References (5)