Information disclosure in Bouncycastle Bouncy Castle Crypto Package
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."
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.048 (91.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 92nd percentile — 91.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.048 · newest: 0.048 · change: 0.000
Affected products
- Bouncycastle Bouncy Castle Crypto Package
- Oracle Application Testing Suite — versions 12.5.0.1, 12.5.0.2, 12.5.0.3
- Oracle Enterprise Manager Ops Center — versions 12.1.4, 12.2.2
- Oracle Peoplesoft Enterprise Peopletools — versions 8.54, 8.55
- Oracle Virtual Desktop Infrastructure — versions 3.5.2
- openSUSE Leap — versions 42.1
- openSUSE — versions 13.1, 13.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- rhn.redhat.com/errata/RHSA-2016-2035.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- www.securityfocus.com/bid/79091 (vdb-entry)
- lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html (vendor-advisory, Third Party Advisory)
- lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html (Third Party Advisory)
- rhn.redhat.com/errata/RHSA-2016-2036.html (vendor-advisory)
- www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
Frequently asked questions
- What is CVE-2015-7940?
- CVE-2015-7940 is a vulnerability in Bouncycastle Bouncy Castle Crypto Package, classified under Information Disclosure. Published 2015-11-09.
- Is CVE-2015-7940 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.