CVE-2015-7940

EPSS 0.97%

Moderate severity vulnerability that affects org.bouncycastle:bcprov-jdk14 and org.bouncycastle:bcprov-jdk15

Published: 10/17/2018Modified: 9/12/2025

Also known as:GHSA-4mv7-cq75-3qjmDEBIAN-CVE-2015-7940

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."

Affected packages (6)

Debian/bouncycastlefrom 0, < 1.51-1
Debian/bouncycastlefrom 0, < 1.44+dfsg-2+deb6u1
Debian/bouncycastlefrom 0, < 1.44+dfsg-3.1+deb7u1
Maven/org.bouncycastle:bcprov-jdk14from 0, < 1.51
Maven/org.bouncycastle:bcprov-jdk15from 0, < 1.51
Maven/org.bouncycastle:bcprov-jdk15onfrom 0, < 1.51

References (24)

ADVISORYhttps://github.com/advisories/GHSA-4mv7-cq75-3qjm
ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2015-7940
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2015-7940
WEBhttp://lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html
WEBhttp://lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html
WEBhttp://rhn.redhat.com/errata/RHSA-2016-2035.html
WEBhttp://rhn.redhat.com/errata/RHSA-2016-2036.html
WEBhttps://usn.ubuntu.com/3727-1
WEBhttps://www.oracle.com/security-alerts/cpuapr2020.html
WEBhttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
WEBhttp://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html
WEBhttp://www.debian.org/security/2015/dsa-3417
WEBhttp://www.openwall.com/lists/oss-security/2015/10/22/7
WEBhttp://www.openwall.com/lists/oss-security/2015/10/22/9
WEBhttp://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
WEBhttp://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
WEBhttp://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
WEBhttp://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
WEBhttp://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
WEBhttp://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
WEBhttp://www.securityfocus.com/bid/79091
WEBhttp://www.securitytracker.com/id/1037036
WEBhttp://www.securitytracker.com/id/1037046
WEBhttp://www.securitytracker.com/id/1037053