Access Restriction Bypass Affecting samba package, versions <2:4.5.2+dfsg-2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.44% (76th percentile)

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  • Snyk IDSNYK-DEBIAN10-SAMBA-357362
  • published11 May 2017
  • disclosed11 May 2017

Introduced: 11 May 2017

CVE-2016-2126  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade Debian:10 samba to version 2:4.5.2+dfsg-2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba package and not the samba package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

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.

CVSS Scores

version 3.1