Vulnerability identifier: #VU32283

Vulnerability risk: Medium

CVSSv3.1: 6.4 [AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-8614

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
claws-mail
Other software / Other software solutions

Vendor: www.claws-mail.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing a crafted email, involving Japanese character set conversion. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 3.13.1.

Vulnerable software versions

claws-mail: 3.9.1 - 3.11.1

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External links
http://git.claws-mail.org/?p=claws.git;a=commit;h=d390fa07f5548f3173dd9cc13b233db5ce934c82
http://lists.opensuse.org/opensuse-updates/2016-01/msg00000.html
http://www.claws-mail.org/news.php
http://www.debian.org/security/2016/dsa-3452
http://www.openwall.com/lists/oss-security/2015/12/21/10
http://www.openwall.com/lists/oss-security/2015/12/22/2
http://www.thewildbeast.co.uk/claws-mail/bugzilla/show_bug.cgi?id=3557
http://security.gentoo.org/glsa/201606-11

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.