Ubuntu 12.04 LTS / 14.04 LTS / 16.04 LTS / 16.10 : exim4 vulnerability (USN-3164-1)

Low Nessus Plugin ID 96336


The remote Ubuntu host is missing one or more security-related patches.


Bjoern Jacke discovered that Exim incorrectly handled DKIM keys. In certain configurations, private DKIM signing keys could be leaked to the log files.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected exim4-daemon-heavy and / or exim4-daemon-light packages.

Plugin Details

Severity: Low

ID: 96336

File Name: ubuntu_USN-3164-1.nasl

Version: $Revision: 3.6 $

Type: local

Agent: unix

Published: 2017/01/06

Modified: 2017/08/16

Dependencies: 12634

Risk Information

Risk Factor: Low


Base Score: 2.6

Temporal Score: 2.1

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:ND


Base Score: 5.9

Temporal Score: 5.4

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

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:X

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:exim4-daemon-heavy, p-cpe:/a:canonical:ubuntu_linux:exim4-daemon-light, cpe:/o:canonical:ubuntu_linux:12.04:-:lts, cpe:/o:canonical:ubuntu_linux:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:16.10

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2017/01/05

Reference Information

CVE: CVE-2016-9963

OSVDB: 148832

USN: 3164-1