CVE-2016-0704

MEDIUM

OpenSSL <1.0.2a - Info Disclosure

Title source: llm

Description

An oracle protection mechanism in 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 overwrites incorrect MASTER-KEY bytes during use of export cipher suites, which makes it easier for remote attackers to decrypt TLS ciphertext data by leveraging a Bleichenbacher RSA padding oracle, a related issue to CVE-2016-0800.

References (29)

[Vendor Advisory] http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html

[Vendor Advisory] http://openssl.org/news/secadv/20160301.txt

[Various Sources] http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl

[Vendor Advisory] http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

[Vendor Advisory] http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

[Vendor Advisory] http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

[Vendor Advisory] http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1035133

[Vendor Advisory] https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

[Various Sources] https://drownattack.com

[Vendor Advisory] https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=ae50d8270026edf5b3c7f8aaa0c6677462b33d97

[Vendor Advisory] https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us

[Various Sources] https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168

[Various Sources] https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc

[Vendor Advisory] https://www.openssl.org/news/secadv/20160301.txt

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/83764

[Third Party Advisory] https://security.gentoo.org/glsa/201603-15

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html

... and 9 more

Scores

CVSS v3 5.9

EPSS 0.0599

EPSS Percentile 90.5%

Attack Vector NETWORK

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

Classification

CWE

CWE-200

Status draft

Affected Products (44)

openssl/openssl < 0.9.8ze

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

openssl/openssl

... and 29 more

Timeline

Published Mar 02, 2016

Tracked Since Feb 18, 2026