Debian DLA-2213-1 : exim4 security update

high Nessus Plugin ID 136702

Synopsis

The remote Debian host is missing a security update.

Description

It was discovered that exim4, a mail transport agent, suffers from a authentication bypass vulnerability in the spa authentication driver.
The spa authentication driver is not enabled by default.

For Debian 8 'Jessie', this problem has been fixed in version 4.84.2-2+deb8u7.

We recommend that you upgrade your exim4 packages.

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

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2020/05/msg00017.html

https://packages.debian.org/source/jessie/exim4

Plugin Details

Severity: High

ID: 136702

File Name: debian_DLA-2213.nasl

Version: 1.4

Type: local

Agent: unix

Published: 5/19/2020

Updated: 1/11/2021

Supported Sensors: Frictionless Assessment Agent, Nessus Agent

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:exim4, p-cpe:/a:debian:debian_linux:exim4-base, p-cpe:/a:debian:debian_linux:exim4-config, p-cpe:/a:debian:debian_linux:exim4-daemon-heavy, p-cpe:/a:debian:debian_linux:exim4-daemon-heavy-dbg, p-cpe:/a:debian:debian_linux:exim4-daemon-light, p-cpe:/a:debian:debian_linux:exim4-daemon-light-dbg, p-cpe:/a:debian:debian_linux:exim4-dbg, p-cpe:/a:debian:debian_linux:exim4-dev, p-cpe:/a:debian:debian_linux:eximon4, cpe:/o:debian:debian_linux:8.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/18/2020

Vulnerability Publication Date: 5/11/2020

Reference Information

CVE: CVE-2020-12783