Debian DSA-4443-1 : samba - security update

Medium Nessus Plugin ID 125094

Synopsis

The remote Debian host is missing a security-related update.

Description

Isaac Boukris and Andrew Bartlett discovered that the S4U2Self Kerberos extension used in Samba's Active Directory support was susceptible to man-in-the-middle attacks caused by incomplete checksum validation.

Details can be found in the upstream advisory at

Solution

Upgrade the samba packages.

For the stable distribution (stretch), this problem has been fixed in version 2:4.5.16+dfsg-1+deb9u2.

See Also

https://security-tracker.debian.org/tracker/source-package/samba

https://packages.debian.org/source/stretch/samba

https://www.debian.org/security/2019/dsa-4443

Plugin Details

Severity: Medium

ID: 125094

File Name: debian_DSA-4443.nasl

Version: 1.5

Type: local

Agent: unix

Published: 2019/05/15

Updated: 2020/01/17

Dependencies: 12634

Risk Information

Risk Factor: Medium

CVSS v2.0

Base Score: 6

Temporal Score: 4.4

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:samba, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/05/14

Vulnerability Publication Date: 2019/07/31

Reference Information

CVE: CVE-2018-16860

DSA: 4443