crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used in stunnel and other products, in certain circumstances involving ECDH or ECDHE cipher suites, uses an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves, which allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts.
Metrics
Affected Vendors & Products
Advisories
Source | ID | Title |
---|---|---|
![]() |
DSA-2390-1 | openssl security update |
![]() |
EUVD-2011-4285 | crypto/bn/bn_nist.c in OpenSSL before 0.9.8h on 32-bit platforms, as used in stunnel and other products, in certain circumstances involving ECDH or ECDHE cipher suites, uses an incorrect modular reduction algorithm in its implementation of the P-256 and P-384 NIST elliptic curves, which allows remote attackers to obtain the private key of a TLS server via multiple handshake attempts. |
![]() |
USN-1357-1 | OpenSSL vulnerabilities |
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
No history.

Status: PUBLISHED
Assigner: redhat
Published:
Updated: 2024-08-07T00:01:51.637Z
Reserved: 2011-11-04T00:00:00
Link: CVE-2011-4354

No data.

Status : Deferred
Published: 2012-01-27T00:55:01.033
Modified: 2025-04-11T00:51:21.963
Link: CVE-2011-4354


No data.