Description
The NIST SP 800-90A default statement of the Dual Elliptic Curve Deterministic Random Bit Generation (Dual_EC_DRBG) algorithm contains point Q constants with a possible relationship to certain "skeleton key" values, which might allow context-dependent attackers to defeat cryptographic protection mechanisms by leveraging knowledge of those values. NOTE: this is a preliminary CVE for Dual_EC_DRBG; future research may provide additional details about point Q and associated attacks, and could potentially lead to a RECAST or REJECT of this CVE.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssl | 1.1.0b-2 | — |
| Debian 13 | openssl | 1.1.0b-2 | — |
| Debian 12 | openssl | 1.1.0b-2 | — |
References
- http://blog.cryptographyengineering.com/2013/09/rsa-warns-developers-against-its-own.html
- http://stream.wsj.com/story/latest-headlines/SS-2-63399/SS-2-332655/
- https://www.schneier.com/blog/archives/2007/11/the_strange_sto.html
- http://blog.cryptographyengineering.com/2013/09/the-many-flaws-of-dualecdrbg.html
- http://threatpost.com/in-wake-of-latest-crypto-revelations-everything-is-suspect
- 63657 vdb-entry
- http://arstechnica.com/security/2013/09/stop-using-nsa-influence-code-in-our-product-rsa-tells-customers/
- http://rump2007.cr.yp.to/15-shumow.pdf