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.
Published: 2012-01-27
Score: 5.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-2390-1 openssl security update
EUVD EUVD 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.
Ubuntu USN Ubuntu USN USN-1357-1 OpenSSL vulnerabilities
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2024-08-07T00:01:51.637Z

Reserved: 2011-11-04T00:00:00.000Z

Link: CVE-2011-4354

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2012-01-27T00:55:01.033

Modified: 2026-04-29T01:13:23.040

Link: CVE-2011-4354

cve-icon Redhat

Severity : Moderate

Publid Date: 2011-11-24T00:00:00Z

Links: CVE-2011-4354 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses