drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in OpenSSL
Name: |
Mehrere Probleme in OpenSSL |
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ID: |
201203-12 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Di, 6. März 2012, 08:58 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4108
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4109
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4576
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4577
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4619
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0027
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2012-0050 |
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Applikationen: |
OpenSSL |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig75169E237E670FDC42137453 Content-Type: text/plain; charset=ISO-8859- Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201203-12 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: OpenSSL: Multiple vulnerabilities Date: March 06, 2012 Bugs: #397695, #399365 ID: 201203-12
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Synopsis ========
Multiple vulnerabilities have been found in OpenSSL, allowing remote attackers to cause a Denial of Service or obtain sensitive information.
Background ==========
OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general purpose cryptography library.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/openssl < 1.0.0g *>= 0.9.8t >= 1.0.0g
Description ===========
Multiple vulnerabilities have been found in OpenSSL:
* Timing differences for decryption are exposed by CBC mode encryption in OpenSSL's implementation of DTLS (CVE-2011-4108). * A policy check failure can result in a double-free error when X509_V_FLAG_POLICY_CHECK is set (CVE-2011-4109). * Clients and servers using SSL 3.0 handshakes do not clear the block cipher padding, allowing a record to contain up to 15 bytes of uninitialized memory, which could include sensitive information (CVE-2011-4576). * Assertion errors can occur during the handling of malformed X.509 certificates when OpenSSL is built with RFC 3779 support (CVE-2011-4577). * A resource management error can occur when OpenSSL's server gated cryptography (SGC) does not properly handle handshake restarts (CVE-2011-4619). * Invalid parameters in the GOST block cipher are not properly handled by the GOST ENGINE(CVE-2012-0027). * An incorrect fix for CVE-2011-4108 creates an unspecified vulnerability for DTLS applications using OpenSSL (CVE-2012-0050).
Impact ======
A remote attacker may be able to cause a Denial of Service or obtain sensitive information, including plaintext passwords.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All OpenSSL users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/openssl-1.0.0g"
References ==========
[ 1 ] CVE-2011-4108 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4108 [ 2 ] CVE-2011-4109 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4109 [ 3 ] CVE-2011-4576 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4576 [ 4 ] CVE-2011-4577 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4577 [ 5 ] CVE-2011-4619 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2011-4619 [ 6 ] CVE-2012-0027 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0027 [ 7 ] CVE-2012-0050 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-0050
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201203-12.xml
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License =======
Copyright 2012 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
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