Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Bouncycastle | Bc-Java | >= 1.51, <= 1.55 |
Related Weaknesses (CWE)
References
- https://access.redhat.com/errata/RHSA-2018:2669
- https://access.redhat.com/errata/RHSA-2018:2927
- https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20181127-0004/
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://access.redhat.com/errata/RHSA-2018:2669
- https://access.redhat.com/errata/RHSA-2018:2927
- https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00PatchThird Party Advisory
- https://security.netapp.com/advisory/ntap-20181127-0004/
- https://www.oracle.com/security-alerts/cpuoct2020.html
FAQ
What is CVE-2016-1000340?
CVE-2016-1000340 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.ra...
How severe is CVE-2016-1000340?
CVE-2016-1000340 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-1000340?
Check the references section above for vendor advisories and patch information. Affected products include: Bouncycastle Bc-Java.