Vulnerability in OpenSSL
CVE-2011-1945
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.
Vulnerability class: POODLE (CVE-2014-3566)
Published · last modified .
CVSS v2 metric
CVSS v2 base score 2.6 (Low). Vector: AV:N/AC:H/Au:N/C:P/I:N/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.033 (88.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 88th percentile — 88.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.033 · newest: 0.033 · change: 0.000
Affected products
- OpenSSL — versions 0.9.1c, 0.9.2b, 0.9.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.mandriva.com/security/advisories (vendor-advisory)
- www.kb.cert.org/vuls/id/MAPG-8FENZ3 (US Government Resource)
- www.mandriva.com/security/advisories (vendor-advisory)
- www.debian.org/security/2011/dsa-2309 (vendor-advisory)
- support.apple.com/kb/HT5784
- lists.apple.com/archives/security-announce/2013/Jun/msg00000.html (vendor-advisory)
- hermes.opensuse.org/messages/8760466 (vendor-advisory)
- www.kb.cert.org/vuls/id/536044 (US Government Resource, third-party-advisory)
- hermes.opensuse.org/messages/8764170 (vendor-advisory)
- secunia.com/advisories/44935 (third-party-advisory)
Frequently asked questions
- What is CVE-2011-1945?
- CVE-2011-1945 is a vulnerability in OpenSSL, classified under Cryptographic Issues. Published 2011-05-31.
- Is CVE-2011-1945 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.