USN-4989-2
Advisory lineage Upstream: 4 Downstream: 0
Published: 16 Jun 2021, 14:17
Last modified:03 Jun 2026, 14:03
Vulnerability Summary
Overall Risk (default)
minimal
0/100 CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
16 Jun 2021, 14:17
Published
Vulnerability first disclosed
03 Jun 2026, 14:03
Last Modified
Vulnerability information updated
Description
bluez vulnerabilities USN-4989-1 fixed several vulnerabilities in BlueZ. This update provides the corresponding update for Ubuntu 16.04 ESM. Original advisory details: It was discovered that BlueZ incorrectly checked certain permissions when pairing. A local attacker could possibly use this issue to impersonate devices. (CVE-2020-26558) Jay LV discovered that BlueZ incorrectly handled redundant disconnect MGMT events. A local attacker could use this issue to cause BlueZ to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-27153)
Affected Systems
- ubuntu•bluez
< 5.37-0ubuntu5.3+esm1