Amazon Linux AMI : exim (ALAS-2018-970)

High Nessus Plugin ID 107241

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VPR Score: 9.5

Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

Buffer overflow in b64decode() function, possibly leading to remote code execution :

An issue was discovered in the base64d function in the SMTP listener in Exim before 4.90.1. By sending a handcrafted message, a buffer overflow may happen. This can be used to execute code remotely.
(CVE-2018-6789)

Solution

Run 'yum update exim' to update your system.

See Also

https://alas.aws.amazon.com/ALAS-2018-970.html

Plugin Details

Severity: High

ID: 107241

File Name: ala_ALAS-2018-970.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2018/03/09

Updated: 2019/04/30

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:amazon:linux:exim, p-cpe:/a:amazon:linux:exim-debuginfo, p-cpe:/a:amazon:linux:exim-greylist, p-cpe:/a:amazon:linux:exim-mon, p-cpe:/a:amazon:linux:exim-mysql, p-cpe:/a:amazon:linux:exim-pgsql, cpe:/o:amazon:linux

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2018/03/08

Vulnerability Publication Date: 2018/02/08

Exploitable With

CANVAS (CANVAS)

Reference Information

CVE: CVE-2018-6789

ALAS: 2018-970