Access of Resource Using Incompatible Type ('Type Confusion') Affecting samba-devel package, versions <0:4.15.5-15.el8_6


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
29.44% (98th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Access of Resource Using Incompatible Type ('Type Confusion') vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-RHEL8-SAMBADEVEL-6204937
  • published26 Jan 2024
  • disclosed19 Jul 2023

Introduced: 19 Jul 2023

CVE-2023-34967  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade RHEL:8 samba-devel to version 0:4.15.5-15.el8_6 or higher.
This issue was patched in RHSA-2024:0423.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-devel package and not the samba-devel package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A Type Confusion vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets, one encoded data structure is a key-value style dictionary where the keys are character strings, and the values can be any of the supported types in the mdssvc protocol. Due to a lack of type checking in callers of the dalloc_value_for_key() function, which returns the object associated with a key, a caller may trigger a crash in talloc_get_size() when talloc detects that the passed-in pointer is not a valid talloc pointer. With an RPC worker process shared among multiple client connections, a malicious client or attacker can trigger a process crash in a shared RPC mdssvc worker process, affecting all other clients this worker serves.

CVSS Scores

version 3.1