CVE-2015-7940 Information

Description

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman (ECDH) key exchanges aka an \invalid curve attack.\

Reference

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html http://rhn.redhat.com/errata/RHSA-2016-2035.html http://rhn.redhat.com/errata/RHSA-2016-2036.html http://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html http://www.debian.org/security/2015/dsa-3417 http://www.openwall.com/lists/oss-security/2015/10/22/7 http://www.openwall.com/lists/oss-security/2015/10/22/9 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.securityfocus.com/bid/79091 http://www.securitytracker.com/id/1037036 http://www.securitytracker.com/id/1037046 http://www.securitytracker.com/id/1037053 https://usn.ubuntu.com/3727-1/ https://www.oracle.com/security-alerts/cpuapr2020.html https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html