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
02 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
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 4.69% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 91.7% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2015-11-09 16:00Z10 YR AGO
- Last updated
- 2024-08-06 08:06Z2 YR AGO
- Reserved
- 2015-10-22
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- 5b265aa3772639790471078d1dcce0fcdddc3f20d30ddf5429a644bf7529f455
05 Affected products
06 References
- rhn.redhat.comRHSA-2016:2035http://rhn.redhat.com/errata/RHSA-2016-2035.html
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
- www.oracle.comhttps://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
- www.securityfocus.com79091http://www.securityfocus.com/bid/79091
- lists.opensuse.orgopenSUSE-SU-2015:1911http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00012.html
- lists.fedoraproject.orgFEDORA-2015-7d95466edahttp://lists.fedoraproject.org/pipermail/package-announce/2016-January/174915.html
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- rhn.redhat.comRHSA-2016:2036http://rhn.redhat.com/errata/RHSA-2016-2036.html
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- usn.ubuntu.comUSN-3727-1https://usn.ubuntu.com/3727-1/
- www.openwall.com[oss-security] 20151022 Re: CVE Request: invalid curve attack on bouncycastlehttp://www.openwall.com/lists/oss-security/2015/10/22/9
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- www.securitytracker.com1037036http://www.securitytracker.com/id/1037036
- www.openwall.com[oss-security] 20151022 CVE Request: invalid curve attack on bouncycastlehttp://www.openwall.com/lists/oss-security/2015/10/22/7
- www.debian.orgDSA-3417http://www.debian.org/security/2015/dsa-3417
- www.oracle.comhttp://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
- web-in-security.blogspot.cahttp://web-in-security.blogspot.ca/2015/09/practical-invalid-curve-attacks.html
- www.securitytracker.com1037046http://www.securitytracker.com/id/1037046
- www.securitytracker.com1037053http://www.securitytracker.com/id/1037053
- www.oracle.comhttps://www.oracle.com/security-alerts/cpuapr2020.html
07 Fixed in
Debian 12
- bouncycastle Fixed in 1.51-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- bouncycastle Fixed in 1.51-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- bouncycastle Fixed in 1.51-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- bouncycastle Fixed in 1.49+dfsg-2ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.