FreeBSD : samba -- multiple vulnerabilities (e4bc323f-cc73-11e6-b704-000c292e4fd8)

Medium Nessus Plugin ID 96164

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Samba team reports :

[CVE-2016-2123] Authenticated users can supply malicious dnsRecord attributes on DNS objects and trigger a controlled memory corruption.

[CVE-2016-2125] Samba client code always requests a forwardable ticket when using Kerberos authentication. This means the target server, which must be in the current or trusted domain/realm, is given a valid general purpose Kerberos 'Ticket Granting Ticket' (TGT), which can be used to fully impersonate the authenticated user or service.

[CVE-2016-2126] A remote, authenticated, attacker can cause the winbindd process to crash using a legitimate Kerberos ticket due to incorrect handling of the PAC checksum. A local service with access to the winbindd privileged pipe can cause winbindd to cache elevated access permissions.

Solution

Update the affected packages.

See Also

https://www.samba.org/samba/security/CVE-2016-2123.html

https://www.samba.org/samba/security/CVE-2016-2125.html

https://www.samba.org/samba/security/CVE-2016-2126.html

http://www.nessus.org/u?6d51b13d

Plugin Details

Severity: Medium

ID: 96164

File Name: freebsd_pkg_e4bc323fcc7311e6b704000c292e4fd8.nasl

Version: 3.8

Type: local

Published: 2016/12/28

Updated: 2019/01/30

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6.5

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

CVSS v3.0

Base Score: 8.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:samba36, p-cpe:/a:freebsd:freebsd:samba4, p-cpe:/a:freebsd:freebsd:samba41, p-cpe:/a:freebsd:freebsd:samba42, p-cpe:/a:freebsd:freebsd:samba43, p-cpe:/a:freebsd:freebsd:samba44, p-cpe:/a:freebsd:freebsd:samba45, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 2016/12/26

Vulnerability Publication Date: 2016/12/19

Reference Information

CVE: CVE-2016-2123, CVE-2016-2125, CVE-2016-2126