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.
2023-07-20T15:15:11.410
2024-11-21T08:07:44.293
Modified
CVSSv3.1: 5.3 (MEDIUM)
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | samba | samba | < 4.16.11 | Yes |
| Application | samba | samba | < 4.17.10 | Yes |
| Application | samba | samba | < 4.18.5 | Yes |
| Operating System | fedoraproject | fedora | 37 | Yes |
| Operating System | fedoraproject | fedora | 38 | Yes |
| Operating System | redhat | enterprise_linux | 8.0 | Yes |
| Operating System | redhat | enterprise_linux | 9.0 | Yes |
| Operating System | debian | debian_linux | 11.0 | Yes |
| Operating System | debian | debian_linux | 12.0 | Yes |