CVE-2016-0703

5.9 MEDIUM
Published: March 02, 2016 Modified: May 06, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://openssl.org/news/secadv/20160301.txt
Source: secalert@redhat.com
Vendor Advisory
http://www.securityfocus.com/bid/83743
Source: secalert@redhat.com
https://drownattack.com
Source: secalert@redhat.com
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
Source: af854a3a-2127-422b-91ae-364da2661108
http://openssl.org/news/secadv/20160301.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.securityfocus.com/bid/83743
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1035133
Source: af854a3a-2127-422b-91ae-364da2661108
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
https://drownattack.com
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201603-15
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.openssl.org/news/secadv/20160301.txt
Source: af854a3a-2127-422b-91ae-364da2661108

62 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.9 / 10.0
EPSS (Exploit Probability)
4.9%
90th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

openssl