Ubuntu 14.04 LTS / 16.04 LTS / 16.10 / 17.04 : exim4 vulnerability (USN-3322-1) (Stack Clash)

medium Nessus Plugin ID 100920

Synopsis

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

Description

It was discovered that Exim did not properly deallocate memory when processing certain command line arguments. A local attacker could use this in conjunction with another vulnerability to possibly execute arbitrary code and gain administrative privileges.

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.

Solution

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

See Also

https://usn.ubuntu.com/3322-1/

Plugin Details

Severity: Medium

ID: 100920

File Name: ubuntu_USN-3322-1.nasl

Version: 3.12

Type: local

Agent: unix

Published: 6/20/2017

Updated: 9/18/2019

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Low

Score: 1.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

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

CVSS v3

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.5

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

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

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:14.04, cpe:/o:canonical:ubuntu_linux:16.04, cpe:/o:canonical:ubuntu_linux:16.10, cpe:/o:canonical:ubuntu_linux:17.04

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

Exploit Ease: No known exploits are available

Patch Publication Date: 6/19/2017

Vulnerability Publication Date: 6/19/2017

Reference Information

CVE: CVE-2017-1000369

USN: 3322-1