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Slackware bind Critical DNS Memory Corruption Fix Advisory 2026-168-01

slackware
Calendar Grey June 17, 2026
Dist Slackware Esm H88
New bind package addresses critical memory corruption issue for Slackware 15.0 and -current installations in advisory 2026-168-01.
New bind packages are available for Slackware 15.0 and -current to fix a security issue.

Summary

Here are the details from the Slackware 15.0 ChangeLog: patches/packages/bind-9.18.50-i586-1_slack15.0.txz: Upgraded. This update fixes a security issue: Fix DNS64 owner case after DNAME restart. When BIND 9 is configured to use DNS64 and encounters a DNAME redirect, it could end up using freed memory for the DNS response owner name. This caused the response to contain corrupted data. This fix ensures the correct owner name is used when constructing the synthesized response after a DNAME redirect. ISC thanks Qifan Zhang of Palo Alto Networks for reporting the issue. (* Security fix *)

Topics%20covered

Topics Covered

security advisory critical bind memory corruption slackware DNS issue

Where Find New Packages

Thanks to the friendly folks at the OSU Open Source Lab (http://osuosl.org) for donating FTP and rsync hosting to the Slackware project! :-)
Also see the "Get Slack" section on http://slackware.com for additional mirror sites near you.
Updated package for Slackware 15.0: ftp://ftp.slackware.com/pub/slackware/slackware-15.0/patches/packages/bind-9.18.50-i586-1_slack15.0.txz
Updated package for Slackware x86_64 15.0: ftp://ftp.slackware.com/pub/slackware/slackware64-15.0/patches/packages/bind-9.18.50-x86_64-1_slack15.0.txz
Updated package for Slackware -current: ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/bind-9.20.24-i686-1.txz
Updated package for Slackware x86_64 -current: ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/bind-9.20.24-x86_64-1.txz

MD5 Signatures

Slackware 15.0 package: c7f0bcfbb1ab8b202ad23a396d763891 bind-9.18.50-i586-1_slack15.0.txz
Slackware x86_64 15.0 package: 54c16ad56fc913d4ad8787ff02dfd94d bind-9.18.50-x86_64-1_slack15.0.txz
Slackware -current package: 551ebfd82fe2d9f67f7d8958d16af9fd n/bind-9.20.24-i686-1.txz
Slackware x86_64 -current package: 5ef707632561437d0c6b58c9c2ff2d07 n/bind-9.20.24-x86_64-1.txz

Severity
critical
Lowest
Low
Medium
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Critical

Topics%20covered

Topics Covered

security advisory critical bind memory corruption slackware DNS issue

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Installation Instructions

Installation instructions: Upgrade the package as root: # upgradepkg bind-9.18.50-i586-1_slack15.0.txz Then, restart the name server: # /etc/rc.d/rc.bind restart

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