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Debian DLA-1911-1 : exim4 security update

critical Nessus Plugin ID 128556

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Synopsis

The remote Debian host is missing a security update.

Description

'Zerons' and Qualys discovered that a buffer overflow triggerable in the TLS negotiation code of the Exim mail transport agent could result in the execution of arbitrary code with root privileges.

For Debian 8 'Jessie', this problem has been fixed in version 4.84.2-2+deb8u6.

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/2019/09/msg00004.html

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

Plugin Details

Severity: Critical

ID: 128556

File Name: debian_DLA-1911.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/9/2019

Updated: 4/26/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2019-15846

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

Vulnerability Information

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

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: 9/6/2019

Vulnerability Publication Date: 9/6/2019

Reference Information

CVE: CVE-2019-15846