Out-of-bounds Read Affecting samba-winbind-32bit package, versions <4.9.5+git.564.996810ca1e3-150100.3.82.3


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.18% (56th percentile)

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  • Snyk ID SNYK-SLES151-SAMBAWINBIND32BIT-5808894
  • published 29 Jul 2023
  • disclosed 28 Jul 2023

How to fix?

Upgrade SLES:15.1 samba-winbind-32bit to version 4.9.5+git.564.996810ca1e3-150100.3.82.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-winbind-32bit package and not the samba-winbind-32bit package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

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 Scores

version 3.1
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NVD

5.9 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    High
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High
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SUSE

5.9 medium
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Red Hat

5.9 medium