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Debian dla-3708 : exim4 - security update

medium Nessus Plugin ID 214479

Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 10 host has packages installed that are affected by a vulnerability as referenced in the dla-3708 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-3708-1 [email protected] https://www.debian.org/lts/security/ Markus Koschany January 05, 2024 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : exim4 Version : 4.92-8+deb10u9 CVE ID : CVE-2023-51766 Debian Bug : 1059387

 It was discovered that Exim, a mail transport agent, can be induced to accept a second message embedded as part of the body of a first message in certain configurations where PIPELINING or CHUNKING on incoming connections is offered.

 For Debian 10 buster, this problem has been fixed in version 4.92-8+deb10u9.

 We recommend that you upgrade your exim4 packages.

 For the detailed security status of exim4 please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/exim4

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the exim4 packages.

See Also

https://security-tracker.debian.org/tracker/source-package/exim4

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

https://security-tracker.debian.org/tracker/CVE-2023-51766

Plugin Details

Severity: Medium

ID: 214479

File Name: debian_DLA-3708.nasl

Version: 1.1

Type: local

Agent: unix

Published: 1/22/2025

Updated: 1/22/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

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

CVSS Score Source: CVE-2023-51766

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.8

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:10.0, 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-light, p-cpe:/a:debian:debian_linux:exim4-dev, p-cpe:/a:debian:debian_linux:eximon4

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: 1/5/2024

Vulnerability Publication Date: 12/24/2023

Reference Information

CVE: CVE-2023-51766

IAVA: 2024-A-0002-S