CVE-2023-44466

Advisory lineage Upstream: 0 Downstream: 15
Analyzed
Published: 29 Sept 2023, 00:00
Last modified:02 Aug 2024, 20:07

Vulnerability Summary

Overall Risk (default)
medium
48/100
CVSS Score
8.8 HIGH
v3.1 (nvd)
EPSS Score
15.85% MEDIUM
16% probability +2.68%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

29 Sept 2023, 00:00
Published
Vulnerability first disclosed
02 Aug 2024, 20:07
Last Modified
Vulnerability information updated

Description

An issue was discovered in net/ceph/messenger_v2.c in the Linux kernel before 6.4.5. There is an integer signedness error, leading to a buffer overflow and remote code execution via HELLO or one of the AUTH frames. This occurs because of an untrusted length taken from a TCP packet in ceph_decode_32.

CVSS Metrics

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

EPSS Trends

Current EPSS score: 15.85%• Percentile: 95%

Techniques & Countermeasures

  • CWE-120•Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

    The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.

Affected Systems

  • linux•linux_kernel

    ≥ 5.11, < 5.15.121 | ≥ 5.16, < 6.1.40 | ≥ 6.2, < 6.4.5

References (5)