CVE-2011-1945
Description
The elliptic curve cryptography (ECC) subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digital Signature Algorithm (ECDSA) is used for the ECDHE_ECDSA cipher suite, does not properly implement curves over binary fields, which makes it easier for context-dependent attackers to determine private keys via a timing attack and a lattice calculation.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1.0.0e-1 |
| sid | Fixed | 1.0.0e-1 |
| forky | Fixed | 1.0.0e-1 |
| bullseye | Fixed | 1.0.0e-1 |
| bookworm | Fixed | 1.0.0e-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| openssl | openssl | {"endIncluding":"1.0.0d"} | |
| openssl | openssl | 0.9.1c | |
| openssl | openssl | 0.9.2b | |
| openssl | openssl | 0.9.3 | |
| openssl | openssl | 0.9.3a | |
| openssl | openssl | 0.9.4 | |
| openssl | openssl | 0.9.5 | |
| openssl | openssl | 0.9.5a | |
| openssl | openssl | 0.9.6 | |
| openssl | openssl | 0.9.6a | |
| openssl | openssl | 0.9.6b | |
| openssl | openssl | 0.9.6c | |
| openssl | openssl | 0.9.6d | |
| openssl | openssl | 0.9.6e | |
| openssl | openssl | 0.9.6f | |
| openssl | openssl | 0.9.6g | |
| openssl | openssl | 0.9.6h | |
| openssl | openssl | 0.9.6i | |
| openssl | openssl | 0.9.6j | |
| openssl | openssl | 0.9.6k | |
| openssl | openssl | 0.9.6l | |
| openssl | openssl | 0.9.6m | |
| openssl | openssl | 0.9.7 | |
| openssl | openssl | 0.9.7a | |
| openssl | openssl | 0.9.7b | |
| openssl | openssl | 0.9.7c | |
| openssl | openssl | 0.9.7d | |
| openssl | openssl | 0.9.7e | |
| openssl | openssl | 0.9.7f | |
| openssl | openssl | 0.9.7g | |
| openssl | openssl | 0.9.7h | |
| openssl | openssl | 0.9.7i | |
| openssl | openssl | 0.9.7j | |
| openssl | openssl | 0.9.7k | |
| openssl | openssl | 0.9.7l | |
| openssl | openssl | 0.9.7m | |
| openssl | openssl | 0.9.8 | |
| openssl | openssl | 0.9.8a | |
| openssl | openssl | 0.9.8b | |
| openssl | openssl | 0.9.8c | |
| openssl | openssl | 0.9.8d | |
| openssl | openssl | 0.9.8e | |
| openssl | openssl | 0.9.8f | |
| openssl | openssl | 0.9.8g | |
| openssl | openssl | 0.9.8h | |
| openssl | openssl | 0.9.8i | |
| openssl | openssl | 0.9.8j | |
| openssl | openssl | 0.9.8k | |
| openssl | openssl | 0.9.8l | |
| openssl | openssl | 0.9.8m | |
| openssl | openssl | 0.9.8n | |
| openssl | openssl | 0.9.8o | |
| openssl | openssl | 0.9.8p | |
| openssl | openssl | 1.0.0 | |
| openssl | openssl | 1.0.0a | |
| openssl | openssl | 1.0.0b | |
| openssl | openssl | 1.0.0c | |
References
- http://eprint.iacr.org/2011/232.pdf
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
- http://secunia.com/advisories/44935
- http://support.apple.com/kb/HT5784
- http://www.debian.org/security/2011/dsa-2309
- http://www.kb.cert.org/vuls/id/536044
- http://www.kb.cert.org/vuls/id/MAPG-8FENZ3
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:136
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:137
- https://hermes.opensuse.org/messages/8760466
- https://hermes.opensuse.org/messages/8764170
- https://security-tracker.debian.org/tracker/CVE-2011-1945
CWEs
CWE-310
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.