vulnerability
Samba CVE-2016-2126: Flaws in Kerberos PAC validation can trigger privilege elevation.
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:L/Au:S/C:N/I:N/A:P) | Dec 20, 2016 | Dec 20, 2016 | Mar 27, 2026 |
Severity
4
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:P)
Published
Dec 20, 2016
Added
Dec 20, 2016
Modified
Mar 27, 2026
Description
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.
Solutions
samba-upgrade-4_3_13samba-upgrade-4_4_8samba-upgrade-4_5_3
Rapid7 Labs
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