CVE-2016-0703 — MEDIUM (5.9)

Q: How severe is CVE-2016-0703?

CVE-2016-0703 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2016-0703?

Check the references section above for vendor advisories and patch information. Affected products include: Openssl Openssl.

Vulnerability Description

The get_client_master_key function in s2_srvr.c in the SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a accepts a nonzero CLIENT-MASTER-KEY CLEAR-KEY-LENGTH value for an arbitrary cipher, which allows man-in-the-middle attackers to determine the MASTER-KEY value and decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, a related issue to CVE-2016-0800.

CVSS Score

5.9

MEDIUM

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Openssl	Openssl	<= 0.9.8ze

Related Weaknesses (CWE)

CWE-200

References

FAQ

What is CVE-2016-0703?

CVE-2016-0703 is a vulnerability with a CVSS score of 5.9 (MEDIUM). The get_client_master_key function in s2_srvr.c in the SSLv2 implementation in OpenSSL before 0.9.8zf, 1.0.0 before 1.0.0r, 1.0.1 before 1.0.1m, and 1.0.2 before 1.0.2a accepts a nonzero CLIENT-MASTER...

How severe is CVE-2016-0703?

CVE-2016-0703 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-0703?

Check the references section above for vendor advisories and patch information. Affected products include: Openssl Openssl.