Wind River Support Network

HomeDefectsLIN1021-6658

Fixed

LIN1021-6658 : Security Advisory - samba - CVE-2023-42670

Created: Oct 10, 2023 Updated: Nov 13, 2023

Resolved Date: Nov 13, 2023

Found In Version: 10.21.20.1

Severity: Standard

Applicable for: Wind River Linux LTS 21

Component/s: Userspace

Description

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.

https://nvd.nist.gov/vuln/detail/CVE-2023-42670