CVE-2023-34967

Samba: type confusion in mdssvc rpc service for spotlight

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.

Scores

Faiblesses (CWE)

• CWE-843

Références européennes

• ENISA EUVD · EUVD-2023-39006
• GCVE · GCVE-0-2023-34967

Avis du CERT-FR

• CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
• CERTFR-2024-AVI-0506 — Multiples vulnérabilités dans Juniper Secure Analytics · cert.ssi.gouv.fr
• CERTFR-2024-AVI-0305 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
• CERTFR-2024-AVI-0262 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
• CERTFR-2023-AVI-0603 — Multiples vulnérabilités dans Samba · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

• cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* < 4.16.11
• cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* ≥ 4.17.0 < 4.17.10
• cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* ≥ 4.18.0 < 4.18.5
• cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
• cpe:2.3:o:fedoraproject:fedora:38:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
• cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
• cpe:2.3:o:debian:debian_linux:12.0:*:*:*:*:*:*:*

Produits affectés

Références

• https://access.redhat.com/errata/RHSA-2023:6667
• https://access.redhat.com/errata/RHSA-2023:7139
• https://access.redhat.com/errata/RHSA-2024:0423
• https://access.redhat.com/errata/RHSA-2024:0580
• https://access.redhat.com/security/cve/CVE-2023-34967
• https://bugzilla.redhat.com/show_bug.cgi?id=2222794
• https://www.samba.org/samba/security/CVE-2023-34967.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BPCSGND7LO467AJGR5DYBGZLTCGTOBCC/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OT74M42E6C36W7PQVY3OS4ZM7DVYB64Z/
• https://security.netapp.com/advisory/ntap-20230731-0010/
• https://www.debian.org/security/2023/dsa-5477

Sources