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CVE-2016-1000340

Published: Jun 4, 2018Updated: May 12, 2025 Sources: CVE List NVD GHSACWE-19
NVD MITRE
7.5CVSSHIGH
EPSS Score
2.2%
Top 19.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

In the Bouncy Castle JCE Provider versions 1.51 to 1.55, a carry propagation bug was introduced in the implementation of squaring for several raw math classes have been fixed (org.bouncycastle.math.raw.Nat???). These classes are used by our custom elliptic curve implementations (org.bouncycastle.math.ec.custom.**), so there was the possibility of rare (in general usage) spurious calculations for elliptic curve scalar multiplications. Such errors would have been detected with high probability by the output validation for our scalar multipliers.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-19

Affected Products

bc-javabouncycastle
Library
OSS Libraries / generic-library
org.bouncycastle:bcprov-jdk14MavenOSS Libraries
org.bouncycastle:bcprov-jdk15MavenOSS Libraries
org.bouncycastle:bcprov-jdk15onMavenOSS Libraries
n/an/a
bouncycastleoss-projectOSS Librariesaka bouncycastle
mavenpackage-ecosystemOSS Libraries

Exploitability

Official Patch Available

References

https://access.redhat.com/errata/RHSA-2018:2669
access.redhat.com
https://access.redhat.com/errata/RHSA-2018:2927
access.redhat.com
https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00#diff-e5934feac8203ca0104ab291a3560a31
github.com
and 6 more references View all →

Timeline

Published
Jun 4, 2018
Last Updated
May 12, 2025

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