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MEDIUM

Samba: out-of-bounds read in winbind auth_crap

Published Jul 20, 2023

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.

Affected products

Remediation

No remediation recorded yet.

References (14)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner redhat
Published Jul 20, 2023
Updated Nov 20, 2025
Reserved Jun 18, 2022
CISA Vulnrichment
Updated Dec 3, 2024
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity Moderate
Public date Jul 19, 2023
ENISA EUVD
Assigner n/a
Published n/a
Updated n/a
Exploited since n/a
Link n/a