CVE-2024-0646

Advisory lineage Upstream: 0 Downstream: 36
Modified
Published: 17 Jan 2024, 15:16
Last modified:06 Nov 2025, 20:51

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.02% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

17 Jan 2024, 15:16
Published
Vulnerability first disclosed
06 Nov 2025, 20:51
Last Modified
Vulnerability information updated

Description

An out-of-bounds memory write flaw was found in the Linux kernel’s Transport Layer Security functionality in how a user calls a function splice with a ktls socket as the destination. This flaw allows a local user to crash or potentially escalate their privileges on the system.

CVSS Metrics

  • v3.1•HIGH•Score: 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/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: 0.02%• Percentile: 6%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • linux•linux_kernel

    ≥ 4.20, < 5.4.267 | ≥ 5.5, < 5.10.208 | ≥ 5.11, < 5.15.147 | ≥ 5.16, < 6.1.69 | ≥ 6.2, < 6.6.7 | 6.7:rc1 | 6.7:rc2 | 6.7:rc3 | 6.7:rc4

  • redhat•enterprise_linux

    8.0 | 9.0

References (26)