[arch-security] [ASA-201512-13] claws-mail: buffer overflow

[Remi Gacogne]

Arch Linux Security Advisory ASA-201512-13
==========================================

Severity: High
Date    : 2015-12-22
CVE-ID  : CVE-2015-8614
Package : claws-mail
Type    : buffer overflow
Remote  : Yes
Link    : https://wiki.archlinux.org/index.php/CVE

Summary
=======

The package claws-mail before version 3.13.1-1 is vulnerable to a
remotely triggerable buffer overflow.

Resolution
==========

Upgrade to 3.13.1-1.

# pacman -Syu "claws-mail>=3.13.1-1"

The problem has been fixed upstream in version 3.13.1.

Workaround
==========

None.

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

A remotely triggerable buffer overflow has been found in the code of
claws-mail handling character conversion, in functions conv_jistoeuc(),
 conv_euctojis() and conv_sjistoeuc(), in codeconv.c.
There was no bounds checking on buffers passed to these functions, some
stack-based but other potentially heap-based.
This issue has been located in the wild and might currently be exploited.

Impact
======

A remote attacker might be able to execute arbitrary code on the
affected host by sending a crafted e-mail to a clasw-mail user.

References
==========

https://access.redhat.com/security/cve/CVE-2015-8614
http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=3557
http://git.claws-mail.org/?p=claws.git;a=blobdiff;f=src/codeconv.c;h=39e259fc6bf31c9f89a591ec5e830fb6de1b3be0;hp=42ac01c21ae7f043db3ba5a6698cc6688af5d298;hb=d390fa07f5548f3173dd9cc13b233db5ce934c82;hpb=03500608c823556578c8ea6fcdb33100fa717ec4

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