Debian DSA-4456-1 : exim4 - security update

High Nessus Plugin ID 125742

Synopsis

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

Description

The Qualys Research Labs reported a flaw in Exim, a mail transport agent. Improper validation of the recipient address in the deliver_message() function may result in the execution of arbitrary commands.

Solution

Upgrade the exim4 packages.

For the stable distribution (stretch), this problem has been fixed in version 4.89-2+deb9u4.

See Also

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

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

https://www.debian.org/security/2019/dsa-4456

Plugin Details

Severity: High

ID: 125742

File Name: debian_DSA-4456.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2019/06/07

Updated: 2019/12/12

Dependencies: 12634

Risk Information

Risk Factor: High

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, 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: 2019/06/05

Vulnerability Publication Date: 2019/06/05

Exploitable With

CANVAS (CANVAS)

Metasploit (Exim 4.87 - 4.91 Local Privilege Escalation)

Reference Information

CVE: CVE-2019-10149

DSA: 4456