drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mehrere Probleme in GnuTLS
Name: |
Mehrere Probleme in GnuTLS |
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ID: |
200905-04 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
So, 24. Mai 2009, 15:39 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1415
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1416
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1417 |
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Applikationen: |
GNU Transport Layer Security Library |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200905-04 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: GnuTLS: Multiple vulnerabilities Date: May 24, 2009 Bugs: #267774 ID: 200905-04
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Synopsis ========
Multiple vulnerabilities in GnuTLS might result in a Denial of Service, spoofing or the generation of invalid keys.
Background ==========
GnuTLS is an Open Source implementation of the TLS 1.0 and SSL 3.0 protocols.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-libs/gnutls < 2.6.6 >=3D 2.6.6
Description ===========
The following vulnerabilities were found in GnuTLS:
* Miroslav Kratochvil reported that lib/pk-libgcrypt.c does not properly handle corrupt DSA signatures, possibly leading to a double-free vulnerability (CVE-2009-1415).
* Simon Josefsson reported that GnuTLS generates RSA keys stored in DSA structures when creating a DSA key (CVE-2009-1416).
* Romain Francoise reported that the _gnutls_x509_verify_certificate() function in lib/x509/verify.c does not perform time checks, resulting in the "gnutls-cli" program accepting X.509 certificates with validity times in the past or future (CVE-2009-1417).
Impact ======
A remote attacker could entice a user or automated system to process a specially crafted DSA certificate, possibly resulting in a Denial of Service condition. NOTE: This issue might have other unspecified impact including the execution of arbitrary code. Furthermore, a remote attacker could spoof signatures on certificates and the "gnutls-cli" application can be tricked into accepting an invalid certificate.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All GnuTLS users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=3Dnet-libs/gnutls-2.6.6"
References ==========
[ 1 ] CVE-2009-1415 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1415 [ 2 ] CVE-2009-1416 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1416 [ 3 ] CVE-2009-1417 http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2009-1417
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-200905-04.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 http://bugs.gentoo.org.
License =======
Copyright 2009 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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