CVE-2015-3197: OpenSSL

Medium severity, CVSS 5.9. EPSS: 10.7% chance of exploitation in the next 30 days.

ssl/s2_srvr.c in OpenSSL 1.0.1 before 1.0.1r and 1.0.2 before 1.0.2f does not prevent use of disabled ciphers, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by performing computations on SSLv2 traffic, related to the get_client_master_key and get_client_hello functions.

Affected products

• OpenSSL OpenSSL: version 1.0.1 only; version 1.0.1a only; version 1.0.1b only; version 1.0.1c only; version 1.0.1d only; version 1.0.1e only; …
• Oracle Exalogic Infrastructure: version 1.0 only; version 2.0 only
• Oracle OSS Support Tools: version 8.11.16.3.8 only
• Oracle PeopleSoft Enterprise PeopleTools: version 8.53 only; version 8.54 only; version 8.55 only
• Oracle Tuxedo: version 12.1.1.0 only
• Oracle Vm VirtualBox: version 5.0.16 only

Published 2016-02-15. Last modified 2026-06-17.