Bug 2264360

Summary: CVE-2023-5517 dhcp: bind9: Querying RFC 1918 reverse zones may cause an assertion failure when “nxdomain-redirect” is enabled [fedora-all]
Product: [Fedora] Fedora Reporter: Dhananjay Arunesh <darunesh>
Component: dhcpAssignee: Martin Osvald 🛹 <mosvald>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: 39CC: jorton, mosvald, pavel, pemensik
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2024-02-15 10:17:42 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On:    
Bug Blocks: 2263897    

Description Dhananjay Arunesh 2024-02-15 08:11:25 UTC
More information about this security flaw is available in the following bug:


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.

Comment 1 Dhananjay Arunesh 2024-02-15 08:11:29 UTC
Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.


# bugfix, security, enhancement, newpackage (required)

# low, medium, high, urgent (required)

# testing, stable

# Bug numbers: 1234,9876

# Description of your update
notes=Security fix for [PUT CVEs HERE]

# Enable request automation based on the stable/unstable karma thresholds

# Automatically close bugs when this marked as stable

# Suggest that users restart after update


Additionally, you may opt to use the bodhi web interface to submit updates:


Comment 2 Martin Osvald 🛹 2024-02-15 10:17:42 UTC
Dhcp is not affected by this flaw. When looking at the upstream fix https://gitlab.isc.org/isc-projects/bind9/-/commit/9fbafe83d25d91eddc5b2b704e1e4e8e332be57e dhcp doesn't call directly or indirectly fixed routines query_gotanswer(), query_nxdomain() nor query_redirect() in its server/ddns.c code.