| Package | Affected versions | Patched versions |
|---|---|---|
| samba | ≥ 4.17.0, < 4.17.10≥ 4.18.0, < 4.18.5< 4.16.11 | 4.17.104.18.54.16.11 |
An infinite loop vulnerability was found in Samba's mdssvc RPC service for Spotlight. When parsing Spotlight mdssvc RPC packets sent by the client, the core unmarshalling function sl_unpack_loop() did not validate a field in the network packet that contains the count of elements in an array-like structure. By passing 0 as the count value, the attacked function will run in an endless loop consuming 100% CPU. This flaw allows an attacker to issue a malformed RPC request, triggering an infinite loop, resulting in a denial of service condition.
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