CVE-2016-1000340 — Vulnetix

CVE-2016-1000340 PUBLISHED

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.

EPSS 0.40% · 60.3th percentile

Risk Scores

EPSS Score

0.40%

60.3th percentile

Affected Products

Vendor	Product	Versions
Ubuntu:16.04:LTS	bouncycastle	0, 1.49+dfsg-3ubuntu1, 1.51-4ubuntu1

Timeline

Jun 4, 2018 CVE Published
Feb 4, 2022 EPSS Score
Mar 28, 2022 EPSS Score
May 19, 2022 EPSS Score
Jul 10, 2022 EPSS Score
Sep 1, 2022 EPSS Score
Dec 14, 2022 EPSS Score
Feb 4, 2023 EPSS Score
Mar 7, 2023 EPSS Score
Mar 28, 2023 EPSS Score
May 19, 2023 EPSS Score
Jul 10, 2023 EPSS Score

References

https://ubuntu.com/security/CVE-2016-1000340 third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2016-1000340 third-party-advisory

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