CVE-2015-7940
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."
02 / AFFECTED SOFTWARE
Affected packages
9 explicit affected versions
7 explicit affected versions
5 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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."
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."
05 / REFERENCES
Further evidence
- 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
- https://github.com/advisories/GHSA-4mv7-cq75-3qjm
- https://nvd.nist.gov/vuln/detail/CVE-2015-7940
- https://usn.ubuntu.com/3727-1