Out-of-bounds Read Affecting libsamba-util0-32bit package, versions <4.9.5+git.243.e76c5cb3d97-3.21.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.6% (79th percentile)

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  • Snyk ID SNYK-SLES151-LIBSAMBAUTIL032BIT-2719368
  • published 14 Apr 2022
  • disclosed 23 Jan 2020

How to fix?

Upgrade SLES:15.1 libsamba-util0-32bit to version 4.9.5+git.243.e76c5cb3d97-3.21.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsamba-util0-32bit package and not the libsamba-util0-32bit package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

All samba versions 4.9.x before 4.9.18, 4.10.x before 4.10.12 and 4.11.x before 4.11.5 have an issue where if it is set with "log level = 3" (or above) then the string obtained from the client, after a failed character conversion, is printed. Such strings can be provided during the NTLMSSP authentication exchange. In the Samba AD DC in particular, this may cause a long-lived process(such as the RPC server) to terminate. (In the file server case, the most likely target, smbd, operates as process-per-client and so a crash there is harmless).

CVSS Scores

version 3.1
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NVD

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

6.5 medium
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Red Hat

6.5 medium