CVE-2016-1000340

Aliases:GHSA-r97x-3g8f-gx3m
Advisory lineage Upstream: 0 Downstream: 5
Modified
Published: 04 Jun 2018, 13:00
Last modified:06 Aug 2024, 03:55

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.5 HIGH
v3.0 (nvd)
EPSS Score
0.4% LOW
0% probability +0.19%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

04 Jun 2018, 13:00
Published
Vulnerability first disclosed
06 Aug 2024, 03:55
Last Modified
Vulnerability information updated

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 Metrics

  • v3.0•HIGH•Score: 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N

EPSS Trends

Current EPSS score: 0.40%• Percentile: 61%

Techniques & Countermeasures

  • CWE-19•Data Processing Errors

    Weaknesses in this category are typically found in functionality that processes data. Data processing is the manipulation of input to retrieve or save information.

Affected Systems

  • bouncycastle•bc-java

    ≥ 1.51, ≤ 1.55

  • org.bouncycastle•bcprov-jdk14

    ≥ 1.51, < 1.56

  • org.bouncycastle•bcprov-jdk15

    ≥ 1.51, < 1.56

  • org.bouncycastle•bcprov-jdk15on

    ≥ 1.51, < 1.56

References (9)