drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in DenyHosts
Name: |
Denial of Service in DenyHosts |
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ID: |
201406-23 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Do, 26. Juni 2014, 08:39 |
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Referenzen: |
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6890 |
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Applikationen: |
DenyHosts |
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Originalnachricht |
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- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201406-23 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - http://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: DenyHosts: Denial of Service Date: June 25, 2014 Bugs: #495130 ID: 201406-23
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Synopsis ========
A vulnerability in DenyHosts could allow a remote attacker to create a Denial of Service condition.
Background ==========
DenyHosts is a script intended to be run by Linux system administrators to help thwart SSH server attacks.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 app-admin/denyhosts < 2.6-r9 >= 2.6-r9
Description ===========
DenyHosts does not properly define the regular expressions used when parsing SSH authentication logs.
Impact ======
A remote attacker could possibly cause a Denial of Service condition via a crafted login name.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All DenyHost users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=app-admin/denyhosts-2.6-r9"
References ==========
[ 1 ] CVE-2013-6890 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-6890
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
http://security.gentoo.org/glsa/glsa-201406-23.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 2014 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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