CVE-2011-4354

N/A
Published: January 27, 2012 at 12:00 AM UTC
Updated: June 16, 2026 at 11:34 PM UTC
1 product affected across 1 vendorOpenSSL

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Severity
N/A
Exploit prediction
EPSS 3%

Description

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.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Confidentiality
PARTIAL
Integrity
PARTIAL
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-310

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