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Slackware 14.1: 2015-188-04 Critical: Bind Denial Of Service Attack

slackware
Calendar Grey July 8, 2015
Dist Slackware Esm H88
Recent patches for bind packages in Slackware address a significant denial of service vulnerability triggered by harmful queries that obstruct DNSSEC checking.
New bind packages are available for Slackware 13.0, 13.1, 13.37, 14.0, 14.1, and -current to fix a security issue

Summary

Here are the details from the Slackware 14.1 ChangeLog: patches/packages/bind-9.9.7_P1-i486-1_slack14.1.txz: Upgraded. This update fixes a security issue where an attacker who can cause a validating resolver to query a zone containing specifically constructed contents can cause that resolver to fail an assertion and terminate due to a defect in validation code. This means that a recursive resolver that is performing DNSSEC validation can be deliberately stopped by an attacker who can cause the resolver to perform a query against a maliciously-constructed zone. This will result in a denial of service to clients who rely on that resolver. For more information, see: https://kb.isc.org/docs/aa-01267 https://www.cve.org/CVERecord?id=CVE-2015-4620 (* Security fix *)

Topics%20covered

Topics Covered

security advisory denial of service critical software update bind patch slackware

Where Find New Packages

Thanks to the friendly folks at the OSU Open Source Lab (https://osuosl.org/) for donating FTP and rsync hosting to the Slackware project! :-)
Also see the "Get Slack" section on http://www.slackware.com/ for additional mirror sites near you.
Updated package for Slackware 13.0:
Updated package for Slackware x86_64 13.0:
Updated package for Slackware 13.1:
Updated package for Slackware x86_64 13.1:
Updated package for Slackware 13.37:
Updated package for Slackware x86_64 13.37:
Updated package for Slackware 14.0:
Updated package for Slackware x86_64 14.0:
Updated package for Slackware 14.1:
Updated package for Slackware x86_64 14.1:
Updated package for Slackware -current:
Updated package for Slackware x86_64 -current:

MD5 Signatures

Slackware 13.0 package: 38e658538037036f3d77108dcf0865c3 bind-9.9.7_P1-i486-1_slack13.0.txz
Slackware x86_64 13.0 package: ce60a95cf08aae43ad371c3344b5ceac bind-9.9.7_P1-x86_64-1_slack13.0.txz
Slackware 13.1 package: 32873005a0cf1fefe87c968dabaa69f7 bind-9.9.7_P1-i486-1_slack13.1.txz
Slackware x86_64 13.1 package: b4660cadd8c2c0db82b63bce019cd425 bind-9.9.7_P1-x86_64-1_slack13.1.txz
Slackware 13.37 package: 60559eab25abe9c4227e786dfbda5ec0 bind-9.9.7_P1-i486-1_slack13.37.txz
Slackware x86_64 13.37 package: 466a456646c4f7a36646d7f802364877 bind-9.9.7_P1-x86_64-1_slack13.37.txz
Slackware 14.0 package: c333a145f504bd7457030e8b8a016ed2 bind-9.9.7_P1-i486-1_slack14.0.txz
Slackware x86_64 14.0 package: 79d7fb87a229627e8a48ed2cdfb0b000 bind-9.9.7_P1-x86_64-1_slack14.0.txz
Slackware 14.1 package: 8c5c206b1a1d9ceab53efc04904afcda bind-9.9.7_P1-i486-1_slack14.1.txz
Slackware x86_64 14.1 package: 01e296eacac7717a2b42090be480007f bind-9.9.7_P1-x86_64-1_slack14.1.txz
Slackware -current package: ec06a2234cb84ed6509cdc34355a1ca2 n/bind-9.10.2_P2-i486-1.txz
Slackware x86_64 -current package: 7dacb77256d58669f8426a1e0137c4b3 n/bind-9.10.2_P2-x86_64-1.txz

Severity
critical
Lowest
Low
Medium
High
Critical

Topics%20covered

Topics Covered

security advisory denial of service critical software update bind patch slackware

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg bind-9.9.7_P1-i486-1_slack14.1.txz Then, restart the name server: # /etc/rc.d/rc.bind restart

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