CVE-2022-3640

Advisory lineage Upstream: 0 Downstream: 50
Modified
Published: 21 Oct 2022, 00:00
Last modified:03 Aug 2024, 01:14

Vulnerability Summary

Overall Risk (default)
medium
45/100
CVSS Score
8.8 HIGH
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

21 Oct 2022, 00:00
Published
Vulnerability first disclosed
03 Aug 2024, 01:14
Last Modified
Vulnerability information updated

Description

A vulnerability, which was classified as critical, was found in Linux Kernel. Affected is the function l2cap_conn_del of the file net/bluetooth/l2cap_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211944.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.02%• Percentile: 7%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

  • CWE-119•Improper Restriction of Operations within the Bounds of a Memory Buffer

    The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

Affected Systems

  • debian•debian_linux

    10.0

  • fedoraproject•fedora

    35 | 36 | 37

  • Unknown•Kernel

    n/a

  • linux•linux_kernel

    ≥ 4.9.326, < 4.9.333 | ≥ 4.14.291, < 4.14.299 | ≥ 4.19.255, < 4.19.265 | ≥ 5.4.209, < 5.4.224 | ≥ 5.10.135, < 5.10.154 | ≥ 5.15.59, < 5.15.79 | ≥ 5.18.16, < 6.0.8

References (7)