CVE-2022-2127

Advisory lineage Upstream: 0 Downstream: 20
Modified
Published: 20 Jul 2023, 14:49
Last modified:20 Nov 2025, 16:09

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
v3.1 (cve.org)
EPSS Score
1.23% LOW
1% probability -0.02%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Jul 2023, 14:49
Published
Vulnerability first disclosed
20 Nov 2025, 16:09
Last Modified
Vulnerability information updated

Description

An out-of-bounds read vulnerability was found in Samba due to insufficient length checks in winbindd_pam_auth_crap.c. When performing NTLM authentication, the client replies to cryptographic challenges back to the server. These replies have variable lengths, and Winbind fails to check the lan manager response length. When Winbind is used for NTLM authentication, a maliciously crafted request can trigger an out-of-bounds read in Winbind, possibly resulting in a crash.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Trends

Current EPSS score: 1.23%• Percentile: 79%

Techniques & Countermeasures

  • CWE-125•Out-of-bounds Read

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

Affected Systems

  • debian•debian_linux

    12.0

  • fedoraproject•fedora

    37 | 38

  • redhat•enterprise_linux

    6.0 | 7.0 | 8.0 | 9.0

  • samba•samba

    ≥ 4.16.0, < 4.16.10 | ≥ 4.17.0, < 4.17.9 | ≥ 4.18.0, < 4.18.4

References (12)