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Debian DSA-4456-1 : exim4 - security update

critical Nessus Plugin ID 125742

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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: Critical

ID: 125742

File Name: debian_DSA-4456.nasl

Version: 1.15

Type: local

Agent: unix

Published: 6/7/2019

Updated: 12/6/2022

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.7

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

CVSS Score Source: CVE-2019-10149

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

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:H/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: 6/5/2019

Vulnerability Publication Date: 6/5/2019

CISA Known Exploited Vulnerability Due Dates: 7/10/2022

Exploitable With

CANVAS (CANVAS)

Metasploit (Exim 4.87 - 4.91 Local Privilege Escalation)

Reference Information

CVE: CVE-2019-10149

CISA-NCAS: AA22-011A

DSA: 4456