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Date: Sat, 11 Mar 2017 22:25:55 +0100
From: Ailin Nemui <ailin.nemui@...il.com>
To: oss-security@...ts.openwall.com
Subject: CVE Request: Irssi use after free in netjoin condition (2017/03)

Dear CVE Assignment Team,

please provide CVE for the following issue:

use after free condition during netjoin processing [1]
======================================================
CWE Classification: CWE-416



Description
-----------

Use after free while producing list of netjoins (CWE-416)

This issue was found and reported to us by APic.


Impact
------

This issue usually leads to segmentation faults. Targeted code
execution should be difficult.


Affected versions
-----------------

Irssi up to and including 1.0.1

We believe Irssi 0.8.21 and prior are not affected since a different
code path causes the netjoins to be flushed prior to reaching the use
after free condition.


Fixed in
--------

Irssi 1.0.2


Recommended action
------------------

Upgrade to Irssi 1.0.2. Irssi 1.0.2 is a maintenance release
without any new features.


Patch
-----

https://github.com/irssi/irssi/commit/77b2631c78461965bc9a7414aae206b5c
514e1b3


References
----------

[1] https://irssi.org/security/irssi_sa_2017_03.txt

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