CVE-2023-34967

medium · 5.3

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.

5.3

CVSS

61.2%

EPSS (exploit prob.)

99th

EPSS percentile

2023-07-20

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Weaknesses

CWE-843

Affected products

Vendor	Product	Affected versions
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

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2023-34967