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Gentoo Linux Security Advisory GLSA 201209-04 |
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http://security.gentoo.org/ |
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Severity: Normal |
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Title: BIND: Multiple vulnerabilities |
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Date: September 24, 2012 |
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Bugs: #402661, #419637, #427966, #434876 |
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ID: 201209-04 |
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Synopsis |
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======== |
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|
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Multiple vulnerabilities have been found in BIND, the worst of which |
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may allow remote Denial of Service. |
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Background |
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========== |
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|
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BIND is the Berkeley Internet Name Domain Server. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 net-dns/bind < 9.9.1_p3 >= 9.9.1_p3 |
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Description |
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=========== |
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|
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Multiple vulnerabilities have been discovered in BIND: |
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|
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* Domain names are not properly revoked due to an error in the cache |
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update policy (CVE-2012-1033). |
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* BIND accepts records with zero-length RDATA fields (CVE-2012-1667). |
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* An assertion failure from the failing-query cache could occur when |
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DNSSEC validation is enabled (CVE-2012-3817). |
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* A memory leak may occur under high TCP query loads (CVE-2012-3868). |
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* An assertion error can occur when a query is performed for a record |
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with RDATA greater than 65535 bytes (CVE-2012-4244). |
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|
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Impact |
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====== |
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|
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A remote attacker may be able to cause a Denial of Service condition or |
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keep domain names resolvable after it has been deleted from |
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registration. |
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Workaround |
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========== |
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There is no known workaround at this time. |
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Resolution |
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========== |
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All BIND users should upgrade to the latest version: |
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=net-dns/bind-9.9.1_p3" |
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References |
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========== |
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[ 1 ] CVE-2012-1033 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1033 |
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[ 2 ] CVE-2012-1667 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-1667 |
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[ 3 ] CVE-2012-3817 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3817 |
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[ 4 ] CVE-2012-3868 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-3868 |
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[ 5 ] CVE-2012-4244 |
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http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-4244 |
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|
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Availability |
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============ |
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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http://security.gentoo.org/glsa/glsa-201209-04.xml |
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Concerns? |
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========= |
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users' machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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https://bugs.gentoo.org. |
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License |
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======= |
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Copyright 2012 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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http://creativecommons.org/licenses/by-sa/2.5 |
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