CVE-2023-42670 Affecting samba-client package, versions <4.17.9+git.421.abde31ca5c2-150500.3.11.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.13% (50th percentile)

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  • Snyk IDSNYK-SLES155-SAMBACLIENT-5961208
  • published12 Oct 2023
  • disclosed11 Oct 2023

Introduced: 11 Oct 2023

CVE-2023-42670  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 samba-client to version 4.17.9+git.421.abde31ca5c2-150500.3.11.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-client package and not the samba-client package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

A flaw was found in Samba. It is susceptible to a vulnerability where multiple incompatible RPC listeners can be initiated, causing disruptions in the AD DC service. When Samba's RPC server experiences a high load or unresponsiveness, servers intended for non-AD DC purposes (for example, NT4-emulation "classic DCs") can erroneously start and compete for the same unix domain sockets. This issue leads to partial query responses from the AD DC, causing issues such as "The procedure number is out of range" when using tools like Active Directory Users. This flaw allows an attacker to disrupt AD DC services.

CVSS Scores

version 3.1