CVE-2011-1945
The elliptic curve cryptography (ECC) subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digital Signature Algorithm (ECDSA)…
- Published
- Updated
- Reserved
- Assigned by
- redhat
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.
Timeline
ID reserved
By redhat
- 22 days later
· 22 days later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Low2.6 | AV:N/AC:H/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 3.3% · top 11% of all CVEs (8 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.6.
Weakness
Affected products
n/a
- affected n/a
References (11)
- MDVSA-2011:136 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- http://www.kb.cert.org/vuls/id/MAPG-8FENZ3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- MDVSA-2011:137 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- DSA-2309 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://support.apple.com/kb/HT5784 (opens in a new tab)x_refsource_CONFIRMx_transferred
- APPLE-SA-2013-06-04-1 (opens in a new tab)vendor-advisoryx_refsource_APPLEx_transferred
- openSUSE-SU-2011:0634 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- VU#536044 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- SUSE-SU-2011:0636 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 44935 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://eprint.iacr.org/2011/232.pdf (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1945)Record last updated .