Rapid7

vulnerability

Samba CVE-2022-2127: CVE-2022-2127, CVE-2023-3347, CVE-2023-34966, CVE-2023-34967 and CVE-2023-34968. Please see announcements for details.

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:C)
Published
Jul 20, 2023
Added
Jul 31, 2023
Modified
Mar 27, 2026

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.

Solution

samba-upgrade-4_16_11
Title
Rapid7 Labs

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