Bug 2558427

Summary: CVE-2026-97313 bind: bind: Denial of service via assertion failure in RPZ query processing [fedora-all]
Product: [Fedora] Fedora Reporter: Marco Benatto <mbenatto>
Component: bindAssignee: Petr Menšík <pemensik>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: anon.amish, dns-sig, mruprich, pemensik, zdohnal
Target Milestone: ---Keywords: Security, SecurityTracking
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Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["d662a4c9-d5ae-498e-8c95-9b4e152ab530"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 2556415    

Description Marco Benatto 2026-10-21 18:01:33 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

A recursive BIND server that receives a query with recursion desired (RD=1) followed by a non-recursive query (RD=0) may exit with an assertion failure, resulting in a denial of service. To be vulnerable, the BIND server must allow recursive queries and have at least two RPZ zones configured: one with the default setting of "recursive-only yes", and the other with "recursive-only no".