Explain CVE-2016-0703
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.
Affected Products: n/a
References: [{'url': 'http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html'}, {'name': '83743', 'tags': ['vdb-entry'], 'url': 'http://www.securityfocus.com/bid/83743'}, {'name': 'openSUSE-SU-2016:0638', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html'}, {'name': 'FreeBSD-SA-16:12', 'tags': ['vendor-advisory'], 'url': 'https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc'}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html'}, {'name': 'SUSE-SU-2016:0621', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html'}, {'url': 'http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html'}, {'name': 'SUSE-SU-2016:1057', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html'}, {'url': 'https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168'}, {'url': 'https://drownattack.com'}, {'url': 'https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=ae50d8270026edf5b3c7f8aaa0c6677462b33d97'}, {'url': 'http://openssl.org/news/secadv/20160301.txt'}, {'name': '20160302 Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: March 2016', 'tags': ['vendor-advisory'], 'url': 'http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl'}, {'name': 'openSUSE-SU-2016:0720', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html'}, {'name': 'SUSE-SU-2016:0624', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05141441'}, {'url': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us'}, {'name': 'SUSE-SU-2016:0631', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html'}, {'url': 'https://www.openssl.org/news/secadv/20160301.txt'}, {'name': 'SUSE-SU-2016:0617', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html'}, {'name': 'GLSA-201603-15', 'tags': ['vendor-advisory'], 'url': 'https://security.gentoo.org/glsa/201603-15'}, {'url': 'http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html'}, {'name': 'openSUSE-SU-2016:0628', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html'}, {'name': '1035133', 'tags': ['vdb-entry'], 'url': 'http://www.securitytracker.com/id/1035133'}, {'name': 'SUSE-SU-2016:0678', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00017.html'}, {'name': 'SUSE-SU-2016:0620', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html'}, {'name': 'openSUSE-SU-2016:0637', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html'}, {'name': 'SUSE-SU-2016:0641', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html'}, {'url': 'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759'}, {'url': 'https://www.arista.com/en/support/advisories-notices/security-advisories/1260-security-advisory-18'}, {'url': 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf'}]
CVE State: PUBLISHED