CVE-2011-1945

Public Exploit

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.

Category

2.6
CVSS
Severity: Low
CVSS 2.0 •
EPSS 7.03% Top 10%
Vendor Advisory mandriva.com Vendor Advisory mandriva.com Vendor Advisory debian.org Vendor Advisory apple.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.mandriva.com/security/advisories?name=MDVSA-2011:136 vendor advisory
http://www.kb.cert.org/vuls/id/MAPG-8FENZ3 us government resource
http://www.mandriva.com/security/advisories?name=MDVSA-2011:137 vendor advisory
http://www.debian.org/security/2011/dsa-2309 vendor advisory
http://support.apple.com/kb/HT5784
http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html vendor advisory
https://hermes.opensuse.org/messages/8760466 vendor advisory
http://www.kb.cert.org/vuls/id/536044 third party advisory us government resource
https://hermes.opensuse.org/messages/8764170 vendor advisory
http://secunia.com/advisories/44935 third party advisory
http://eprint.iacr.org/2011/232.pdf exploit

Frequently Asked Questions

What is the severity of CVE-2011-1945?
CVE-2011-1945 has been scored as a low severity vulnerability.
How to fix CVE-2011-1945?
To fix CVE-2011-1945, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1945 being actively exploited in the wild?
It is possible that CVE-2011-1945 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~7% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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