[arch-security] [ASA-201603-8] exim: privilege escalation

[Levente Polyak]

Arch Linux Security Advisory ASA-201603-8
=========================================

Severity: High
Date    : 2016-03-10
CVE-ID  : CVE-2016-1531
Package : exim
Type    : privilege escalation
Remote  : No
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package exim before version 4.86.2-2 is vulnerable to privilege
escalation.

Resolution
==========

Upgrade to 4.86.2-2.

# pacman -Syu "exim>=4.86.2-2"

The problem has been fixed upstream in version 4.86.2.

Workaround
==========

None.

Description
===========

All installations having Exim set-uid root and using 'perl_startup' are
vulnerable to a local privilege escalation. Any user who can start an
instance of Exim (and this is normally *any* user) can gain root
privileges.

Impact
======

A local attacker is able to use a privilege escalation vulnerability to
gain root privileges.

References
==========

http://www.exim.org/static/doc/CVE-2016-1531.txt
https://access.redhat.com/security/cve/CVE-2016-1531

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