| Package | Affected versions | Patched versions |
|---|---|---|
| samba | ≥ 4.0.0, < 4.3.13≥ 4.4.0, < 4.4.8≥ 4.5.0, < 4.5.3 | 4.3.134.4.84.5.3 |
Samba version 4.0.0 up to 4.5.2 is vulnerable to privilege elevation due to incorrect handling of the PAC (Privilege Attribute Certificate) checksum. A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.
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