CVEvulnerability

CVE-2023-34967

5.3 MEDIUM Published 2023-07-20 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2023-07-20
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 3.1 ([email protected])
5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weaknesses
CWE-843

Description

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.

Affected configurations

• samba samba (< 4.16.11) • samba samba (>= 4.17.0 < 4.17.10) • samba samba (>= 4.18.0 < 4.18.5) • fedoraproject fedora 37 • fedoraproject fedora 38 • redhat enterprise linux 8.0 • redhat enterprise linux 9.0 • debian debian linux 11.0 • debian debian linux 12.0

Related

Weakness · CWE (1)

  • CWE-843 Access of Resource Using Incompatible Type weakness

References