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CVE-2015-7940

Good to know:

Date: November 9, 2015

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."

Language: Java

Severity Score

5.3

Related Resources (25)

Url: http://www.openwall.com/lists/oss-security/2015/10/22/7

Url: http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html

Url: https://www.oracle.com/security-alerts/cpuapr2020.html

Url: http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

Url: http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

Url: http://www.openwall.com/lists/oss-security/2015/10/22/9

Url: http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html

Url: https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html

Url: http://www.debian.org/security/2015/dsa-3417

Url: http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html

Url: http://rhn.redhat.com/errata/RHSA-2016-2036.html

Url: http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

Url: http://www.securitytracker.com/id/1037046

Url: http://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html

Url: http://www.securitytracker.com/id/1037036

Url: https://nvd.nist.gov/vuln/detail/CVE-2015-7940

Url: http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

Url: http://www.securitytracker.com/id/1037053

Url: https://usn.ubuntu.com/3727-1/

Url: http://www.securityfocus.com/bid/79091

Url: https://usn.ubuntu.com/3727-1

Url: https://github.com/advisories/GHSA-4mv7-cq75-3qjm

Url: http://rhn.redhat.com/errata/RHSA-2016-2035.html

Url: http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html

Url: https://www.mend.io/vulnerability-database/CVE-2015-7940

Severity Score

5.3

Weakness Type (CWE)

Cryptographic Issues

CWE-310

Information Leak / Disclosure

CWE-200

Top Fix

Upgrade Version

Upgrade to version org.bouncycastle:bcprov-ext-jdk15on:1.51,org.bouncycastle:bcprov-jdk14:1.51,org.bouncycastle:bcprov-jdk15on:1.51

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CVSS v3.1

Base Score:	5.3
Attack Vector (AV):	NETWORK
Attack Complexity (AC):	LOW
Privileges Required (PR):	NONE
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	LOW
Integrity (I):	NONE
Availability (A):	NONE

CVSS v2

Base Score:	5.0
Access Vector (AV):	NETWORK
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2015-7940

Good to know:

Date: November 9, 2015

Language: Java

Severity Score

Related Resources (25)

Severity Score

Weakness Type (CWE)

Top Fix

Upgrade Version

CVSS v3.1

CVSS v2

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