CVE-2016-0703

CVE Details

Release Date:	2016-03-01
Impact:	Moderate	What is this?

Description

The get_client_master_key function in s2_srvr.c in the SSLv2implementation 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.

See more information about CVE-2016-0703 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	4.3
Vector String:	AV:N/AC:M/Au:N/C:P/I:N/A:N
Version:	2.0
Attack Vector:	Network
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (openssl098e)	ELSA-2016-0372	2016-03-09
Oracle Linux version 7 (openssl098e)	ELSA-2016-0372	2016-03-09