Cryptographic Issues The advisory has been revoked - it doesn't affect any version of package bouncycastle (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1710-BOUNCYCASTLE-624730
- published9 Nov 2015
- disclosed9 Nov 2015
Introduced: 9 Nov 2015
CVE-2015-7940 (opens in a new tab)Amendment
The Ubuntu security team deemed this advisory irrelevant for Ubuntu:17.10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bouncycastle package and not the bouncycastle package as distributed by Ubuntu.
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."
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2015-7940
- http://www.debian.org/security/2015/dsa-3417
- https://security-tracker.debian.org/tracker/CVE-2015-7940
- http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html
- http://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html
- https://www.oracle.com/security-alerts/cpuapr2020.html
- http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html
- https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- 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.openwall.com/lists/oss-security/2015/10/22/7
- http://www.openwall.com/lists/oss-security/2015/10/22/9
- http://rhn.redhat.com/errata/RHSA-2016-2035.html
- http://rhn.redhat.com/errata/RHSA-2016-2036.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/