Debian DLA-1274-1 : exim4 security update

High Nessus Plugin ID 106722

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VPR Score: 9.5

Synopsis

The remote Debian host is missing a security update.

Description

Meh Chang discovered a buffer overflow flaw in a utility function used in the SMTP listener of Exim, a mail transport agent. A remote attacker can take advantage of this flaw to cause a denial of service, or potentially the execution of arbitrary code via a specially crafted message.

For Debian 7 'Wheezy', this problem has been fixed in version 4.80-7+deb7u6.

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/2018/02/msg00009.html

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

Plugin Details

Severity: High

ID: 106722

File Name: debian_DLA-1274.nasl

Version: 3.9

Type: local

Agent: unix

Published: 2018/02/12

Updated: 2020/03/12

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 9.5

CVSS v2.0

Base Score: 7.5

Temporal Score: 6.2

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

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSS v3.0

Base Score: 9.8

Temporal Score: 9.1

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:F/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:7.0

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: 2018/02/10

Vulnerability Publication Date: 2018/02/08

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2018-6789