Ubuntu Security Update USN-3483-1: procmail vulnerability

[LinuxBot]

Ubuntu Security Notice USN-3483-1


20th November, 2017

procmail vulnerability


A security issue affects these releases of Ubuntu and its derivatives:

• Ubuntu 17.10
• Ubuntu 17.04
• Ubuntu 16.04 LTS
• Ubuntu 14.04 LTS

Summary


formail could be made to crash or run programs if it processed specially crafted mail.

Software description

• procmail - Versatile e-mail processor

Details


Jakub Wilk discovered that the formail tool incorrectly handled certain
malformed mail messages. An attacker could use this flaw to cause formail
to crash, resulting in a denial of service, or possibly execute arbitrary
code.

Update instructions


The problem can be corrected by updating your system to the following package version:

Ubuntu 17.10:
procmail 3.22-25ubuntu0.17.10.1
Ubuntu 17.04:
procmail 3.22-25ubuntu0.17.04.1
Ubuntu 16.04 LTS:
procmail 3.22-25ubuntu0.16.04.1
Ubuntu 14.04 LTS:
procmail 3.22-21ubuntu0.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

In general, a standard system update will make all the necessary changes.

References


CVE-2017-16844

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