GHSA-r97x-3g8f-gx3m
The Bouncy Castle JCE Provider carry a propagation bug
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.bouncycastle:bcprov-jdk14 | >= 1.51, < 1.56 | 1.56 |
| Maven | org.bouncycastle:bcprov-jdk15 | >= 1.51, < 1.56 | 1.56 |
| Maven | org.bouncycastle:bcprov-jdk15on | >= 1.51, < 1.56 | 1.56 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2016-1000340
- https://github.com/bcgit/bc-java/commit/790642084c4e0cadd47352054f868cc8397e2c00#diff-e5934feac8203ca0104ab291a3560a31
- https://access.redhat.com/errata/RHSA-2018:2669
- https://access.redhat.com/errata/RHSA-2018:2927
- https://github.com/advisories/GHSA-r97x-3g8f-gx3m
- https://github.com/bcgit/bc-java
- https://security.netapp.com/advisory/ntap-20181127-0004
- https://www.oracle.com/security-alerts/cpuoct2020.html