#VU40397 Stack-based buffer overflow in claws-mail - CVE-2015-8708

Vulnerability identifier: #VU40397

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2015-8708

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 within the conv_euctojis function in codeconv.c when processing a crafted email, involving Japanese character set conversion. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-8614. 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
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

claws-mail: 3.13.1

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External links
https://www.openwall.com/lists/oss-security/2015/12/31/1
https://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.