Denial of service in OpenSSL

1) Denial of service

EUVDB-ID: #VU259

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2004-0112

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to cause OpenSSL to crash.

The vulnerability exists due to a flaw in SSL/TLS handshaking code when using Kerberos ciphersuites. A remote unauthenticated attacker can perform a carefully crafted SSL/TLS handshake against a server configured to use Kerberos ciphersuites in such a way as to cause OpenSSL to crash.

Successful exploitation of this vulnerability may result in a denial of service.

Mitigation

Upgrade your version to OpenSSL 0.9.7d.

Vulnerable software versions

OpenSSL: 0.9.7 - 0.9.7c

External links

http://www.openssl.org/news/vulnerabilities.html#y2002

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.