drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Cyrus-SASL
Name: |
Denial of Service in Cyrus-SASL |
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ID: |
201309-01 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mo, 2. September 2013, 07:57 |
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Referenzen: |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-4122 |
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Applikationen: |
Cyrus SASL |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201309-01 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: Cyrus-SASL: Denial of Service Date: September 01, 2013 Bugs: #476764 ID: 201309-01
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Synopsis ========
A NULL pointer dereference in Cyrus-SASL may allow remote attackers to cause a Denial of Service condition.
Background ==========
Cyrus-SASL is an implementation of the Simple Authentication and Security Layer.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/cyrus-sasl < 2.1.26-r3 >= 2.1.26-r3
Description ===========
In the GNU C Library (glibc) from version 2.17 onwards, the crypt() function call can return NULL when the salt violates specifications or the system is in FIPS-140 mode and a DES or MD5 hashed password is passed. When Cyrus-SASL's authentication mechanisms call crypt(), a NULL may be returned.
Impact ======
A remote attacker could trigger this vulnerability to cause a Denial of Service condition.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All Cyrus-SASL users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=dev-libs/cyrus-sasl-2.1.26-r3"
References ==========
[ 1 ] CVE-2013-4122 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4122
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201309-01.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 2013 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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