Vulnerability 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.
CVSS Score
LOW
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openssl | Openssl | <= 1.0.0d |
Related Weaknesses (CWE)
References
- http://eprint.iacr.org/2011/232.pdfExploit
- 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/536044US Government Resource
- http://www.kb.cert.org/vuls/id/MAPG-8FENZ3US Government Resource
- 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
- http://eprint.iacr.org/2011/232.pdfExploit
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
- http://secunia.com/advisories/44935
- http://support.apple.com/kb/HT5784
FAQ
What is CVE-2011-1945?
CVE-2011-1945 is a vulnerability with a CVSS score of 2.6 (LOW). 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 i...
How severe is CVE-2011-1945?
CVE-2011-1945 has been rated LOW with a CVSS base score of 2.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1945?
Check the references section above for vendor advisories and patch information. Affected products include: Openssl Openssl.