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Echo: samba: security update to 2:4.5.2+dfsg-2

medium Tenable Cloud Security Plugin ID 462946

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2016-2126)

Solution

Update the samba library and its related packages to version 2:4.5.2+dfsg-2 or later.

See Also

https://advisory.echohq.com/cve/CVE-2016-2126

Plugin Details

Severity: Medium

ID: 462946

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Medium

Score: 5

Percentile: 95.09

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:P

CVSS Score Source: CVE-2016-2126

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/2/2026

Vulnerability Publication Date: 12/19/2016

Reference Information

CVE: CVE-2016-2126

IAVA: 2016-A-0353-S