#VU11533 Buffer overflow in OpenSSL - CVE-2014-0195

Vulnerability identifier: #VU11533

Vulnerability risk: High

CVSSv4.0: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2014-0195

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
OpenSSL
Server applications / Encryption software

Vendor: OpenSSL Software Foundation

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

The vulnerability exists due to a boundary error in OpenSSL when processing DTLS fragments to an OpenSSL DTLS client or server. A remote attacker can send a specially crafted request to vulnerable application and cause the server to crash or execute arbitrary code on the target system.

Successful exploitation of the vulnerability requires that server support DTLS.

Mitigation
Update to version 0.9.8za, 1.0.0m or 1.0.1h.

Vulnerable software versions

OpenSSL: 0.9.8z - 0.9.8p, 1.0.0c - 1.0.0, 1.0.1g - 1.0.1

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External links
https://www.openssl.org/news/secadv/20140605.txt

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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. However, a fully functional exploit for this vulnerability is available.