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CVE-2016-0704 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....

MediumCVSS 5.9 EPSS 6.9%
Published
Updated
Exploit status
No public exploit known

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.

Affected products

ProductAffected versionsFixed in
debian/openssl(Debian:12) < 1.0.0c-2 1.0.0c-2
debian/openssl(Debian:13) < 1.0.0c-2 1.0.0c-2
debian/openssl(Debian:14) < 1.0.0c-2 1.0.0c-2
OpenSSL <= 0.9.8ze No fix listed
OpenSSL = 1.0.0 No fix listed
OpenSSL = 1.0.0-beta1 No fix listed
OpenSSL = 1.0.0-beta2 No fix listed
OpenSSL = 1.0.0-beta3 No fix listed
OpenSSL = 1.0.0-beta4 No fix listed
OpenSSL = 1.0.0-beta5 No fix listed
OpenSSL = 1.0.0a No fix listed
OpenSSL = 1.0.0b No fix listed
OpenSSL = 1.0.0c No fix listed
OpenSSL = 1.0.0d No fix listed
OpenSSL = 1.0.0e No fix listed
OpenSSL = 1.0.0f No fix listed
OpenSSL = 1.0.0g No fix listed
OpenSSL = 1.0.0h No fix listed
OpenSSL = 1.0.0i No fix listed
OpenSSL = 1.0.0j No fix listed
OpenSSL = 1.0.0k No fix listed
OpenSSL = 1.0.0l No fix listed
OpenSSL = 1.0.0m No fix listed
OpenSSL = 1.0.0n No fix listed
OpenSSL = 1.0.0o No fix listed
Show 22 more
ProductAffected versionsFixed in
OpenSSL = 1.0.0p No fix listed
OpenSSL = 1.0.0q No fix listed
OpenSSL = 1.0.1 No fix listed
OpenSSL = 1.0.1-beta1 No fix listed
OpenSSL = 1.0.1-beta2 No fix listed
OpenSSL = 1.0.1-beta3 No fix listed
OpenSSL = 1.0.1a No fix listed
OpenSSL = 1.0.1b No fix listed
OpenSSL = 1.0.1c No fix listed
OpenSSL = 1.0.1d No fix listed
OpenSSL = 1.0.1e No fix listed
OpenSSL = 1.0.1f No fix listed
OpenSSL = 1.0.1g No fix listed
OpenSSL = 1.0.1h No fix listed
OpenSSL = 1.0.1i No fix listed
OpenSSL = 1.0.1j No fix listed
OpenSSL = 1.0.1k No fix listed
OpenSSL = 1.0.1l No fix listed
OpenSSL = 1.0.2 No fix listed
OpenSSL = 1.0.2-beta1 No fix listed
OpenSSL = 1.0.2-beta2 No fix listed
OpenSSL = 1.0.2-beta3 No fix listed

References