CVE-2022-2588

Advisory lineage Upstream: 0 Downstream: 66
Modified
Published: 08 Jan 2024, 17:50
Last modified:22 May 2025, 18:23

Vulnerability Summary

Overall Risk (default)
high
52/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
54.87% CRITICAL
55% probability +0.57%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

08 Jan 2024, 17:50
Published
Vulnerability first disclosed
22 May 2025, 18:23
Last Modified
Vulnerability information updated

Description

It was discovered that the cls_route filter implementation in the Linux kernel would not remove an old filter from the hashtable before freeing it if its handle had the value 0.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 54.87%• Percentile: 98%

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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.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-415•Double Free

    The product calls free() twice on the same memory address.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 20.04 | 22.04

  • linux•linux_kernel

    < 4.9.326 | ≥ 4.10, < 4.14.291 | ≥ 4.15, < 4.19.256 | ≥ 4.20, < 5.4.211 | ≥ 5.5, < 5.10.137 | ≥ 5.11, < 5.15.61 | ≥ 5.16, < 5.18.18 | ≥ 5.19, < 5.19.2

  • the linux kernel organization•linux

    < 6.0~rc1

References (15)