GLSA-201709-19 : Exim: Local privilege escalation (Stack Clash)

Low Nessus Plugin ID 103447

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VPR Score: 1.4

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-201709-19 (Exim: Local privilege escalation)

Exim supports the use of multiple “-p” command line arguments causing a memory leak. This could lead to a stack-clash in user-space and as result the attacker can, “clash” or “smash” the stack or another memory region, or “jump” over the stack guard-page.
Impact :

A local attacker could obtain root privileges.
Workaround :

There is no known workaround at this time.

Solution

All Exim users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=mail-mta/exim-4.89-r1'

See Also

https://security.gentoo.org/glsa/201709-19

Plugin Details

Severity: Low

ID: 103447

File Name: gentoo_GLSA-201709-19.nasl

Version: Revision: 3.3

Type: local

Published: 2017/09/25

Updated: 2018/01/26

Dependencies: 12634

Risk Information

Risk Factor: Low

VPR Score: 1.4

CVSS v2.0

Base Score: 2.1

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

CVSS v3.0

Base Score: 4

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

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:exim, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2017/09/24

Reference Information

CVE: CVE-2017-1000369

GLSA: 201709-19