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CVE-2011-3210

Status Candidate

Overview

The ephemeral ECDH ciphersuite functionality in OpenSSL 0.9.8 through 0.9.8r and 1.0.x before 1.0.0e does not ensure thread safety during processing of handshake messages from clients, which allows remote attackers to cause a denial of service (daemon crash) via out-of-order messages that violate the TLS protocol.

Related Files

HP Security Bulletin HPSBMU02752 SSRT100802
Posted Mar 21, 2012
Authored by HP | Site hp.com

HP Security Bulletin HPSBMU02752 SSRT100802 - Potential security vulnerabilities have been identified with HP Insight Control Software for Linux (IC-Linux). The vulnerabilities could be exploited remotely to execute arbitrary code or to create a Denial of Service (DoS). Revision 1 of this advisory.

tags | advisory, denial of service, arbitrary, vulnerability
systems | linux
advisories | CVE-2010-4645, CVE-2011-0762, CVE-2011-0997, CVE-2011-1097, CVE-2011-3207, CVE-2011-3210
MD5 | b161d0c30b9a570054c1fd5245102cb5
Ubuntu Security Notice USN-1357-1
Posted Feb 10, 2012
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 1357-1 - It was discovered that the elliptic curve cryptography (ECC) subsystem in OpenSSL, when using the Elliptic Curve Digital Signature Algorithm (ECDSA) for the ECDHE_ECDSA cipher suite, did not properly implement curves over binary fields. This could allow an attacker to determine private keys via a timing attack. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. Adam Langley discovered that the ephemeral Elliptic Curve Diffie-Hellman (ECDH) functionality in OpenSSL did not ensure thread safety while processing handshake messages from clients. This could allow a remote attacker to cause a denial of service via out-of-order messages that violate the TLS protocol. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. Various other issues were also addressed.

tags | advisory, remote, denial of service, protocol
systems | linux, ubuntu
advisories | CVE-2011-1945, CVE-2011-3210, CVE-2011-4108, CVE-2011-4108, CVE-2012-0050, CVE-2011-4109, CVE-2011-4354, CVE-2011-4576, CVE-2011-4577, CVE-2011-4619, CVE-2012-0027, CVE-2011-1945, CVE-2011-3210, CVE-2011-4108, CVE-2011-4109, CVE-2011-4354, CVE-2011-4576, CVE-2011-4577, CVE-2011-4619, CVE-2012-0027, CVE-2012-0050
MD5 | cb9906382e5228bc3514db5a3b873c3a
HP Security Bulletin HPSBUX02734 SSRT100729
Posted Jan 25, 2012
Authored by HP | Site hp.com

HP Security Bulletin HPSBUX02734 SSRT100729 - A potential security vulnerability has been identified with HP-UX OpenSSL. This vulnerability could be exploited remotely to create a Denial of Service (DoS) or to gain unauthorized access. Revision 1 of this advisory.

tags | advisory, denial of service
systems | hpux
advisories | CVE-2011-3210, CVE-2011-4108, CVE-2011-4109, CVE-2011-4576, CVE-2011-4577, CVE-2011-4619
MD5 | 67ac7b079800ca611fda987af17a1185
Mandriva Linux Security Advisory 2011-137
Posted Sep 28, 2011
Authored by Mandriva | Site mandriva.com

Mandriva Linux Security Advisory 2011-137 - The elliptic curve cryptography subsystem in OpenSSL 1.0.0d and earlier, when the Elliptic Curve Digital Signature Algorithm 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. crypto/x509/x509_vfy.c in OpenSSL 1.0.x before 1.0.0e does not initialize certain structure members, which makes it easier for remote attackers to bypass CRL validation by using a nextUpdate value corresponding to a time in the past. The ephemeral ECDH ciphersuite functionality in OpenSSL 0.9.8 through 0.9.8s and 1.0.x before 1.0.0e does not ensure thread safety during processing of handshake messages, which allows remote attackers to cause a denial of service via out-of-order messages that violate the TLS protocol.

tags | advisory, remote, denial of service, crypto, protocol
systems | linux, mandriva
advisories | CVE-2011-1945, CVE-2011-3207, CVE-2011-3210
MD5 | d4cdd08b16fe165439352bfa6ccaf846
OpenSSL Toolkit 1.0.0e
Posted Sep 7, 2011
Site openssl.org

OpenSSL is a robust, fully featured Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) protocols with full-strength cryptography world-wide.

Changes: Initialization of X509_STORE_CTX was fixed to eliminate a case where CRLs with "nextUpdate" in the past were sometimes accepted. An error in SSL memory handling for (EC)DH ciphersuites was fixed. A memory leak on bad inputs to x509_name_ex_d2i was fixed. Some ECC ciphersuites are no longer restricted to SHA1. Protection against ECDSA timing attacks was introduced
tags | encryption, protocol
systems | unix
advisories | CVE-2011-3207, CVE-2011-3210
MD5 | 7040b89c4c58c7a1016c0dfa6e821c86
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