LSN-0073-1

Advisory lineage Upstream: 6 Downstream: 0
Published: 23 Oct 2020, 07:23
Last modified:03 Jun 2026, 13:33

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

23 Oct 2020, 07:23
Published
Vulnerability first disclosed
03 Jun 2026, 13:33
Last Modified
Vulnerability information updated

Description

Kernel Live Patch Security Notice Andy Nguyen discovered that the Bluetooth L2CAP implementation in the Linux kernel contained a type-confusion error. A physically proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-12351) Andy Nguyen discovered that the Bluetooth A2MP implementation in the Linux kernel did not properly initialize memory in some situations. A physically proximate remote attacker could use this to expose sensitive information (kernel memory). (CVE-2020-12352) Andy Nguyen discovered that the Bluetooth HCI event packet parser in the Linux kernel did not properly handle event advertisements of certain sizes, leading to a heap-based buffer overflow. A physically proximate remote attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-24490)

Affected Systems

  • ubuntu•linux

    all | < 4.15.0-122.124 | < 5.4.0-52.57

  • ubuntu•linux-aws

    all

  • ubuntu•linux-azure

    all

  • ubuntu•linux-gcp

    all

  • ubuntu•linux-oem

    all | < 4.15.0-1100.110

References (4)