National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-7940 Detail

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."

Source:  MITRE
Description Last Modified:  11/09/2015

Impact

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html
http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html Third Party Advisory
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 Technical Description
http://www.debian.org/security/2015/dsa-3417
http://www.openwall.com/lists/oss-security/2015/10/22/7 Third Party Advisory VDB Entry
http://www.openwall.com/lists/oss-security/2015/10/22/9 Third Party Advisory VDB Entry
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 Third Party Advisory
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

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)
  • Cryptographic Issues (CWE-310)

Change History

14 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2015-7940
NVD Published Date:
11/09/2015
NVD Last Modified:
07/18/2018