Debian DSA-4687-1 : exim4 - security update

high Nessus Plugin ID 136676

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Synopsis

The remote Debian host is missing a security-related 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.

Solution

Upgrade the exim4 packages.

For the oldstable distribution (stretch), this problem has been fixed in version 4.89-2+deb9u7.

For the stable distribution (buster), this problem has been fixed in version 4.92-8+deb10u4.

Plugin Details

Severity: High

ID: 136676

File Name: debian_DSA-4687.nasl

Version: 1.3

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 5/18/2020

Updated: 3/12/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2020-12783

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:exim4, cpe:/o:debian:debian_linux:10.0, cpe:/o:debian:debian_linux:9.0

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/16/2020

Vulnerability Publication Date: 5/11/2020

Reference Information

CVE: CVE-2020-12783

DSA: 4687

Detections

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