Bug 2264288

Summary: TRIAGE CVE-2023-5680 dnsmasq: bind9: Cleaning an ECS-enabled cache may cause excessive CPU load [fedora-all]
Product: [Fedora] Fedora Reporter: Marco Benatto <mbenatto>
Component: dnsmasqAssignee: Petr Menšík <pemensik>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: 39CC: dns-sig, dougsland, pemensik
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: No Doc Update
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2024-04-26 10:19:06 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2264285    

Description Marco Benatto 2024-02-14 22:12:56 UTC 
More information about this security flaw is available in the following bug:

http://bugzilla.redhat.com/show_bug.cgi?id=2264285

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 Marco Benatto 2024-02-14 22:12:59 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)
type=security

# low, medium, high, urgent (required)
severity=medium

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=2264285,2264288

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

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

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

https://bodhi.fedoraproject.org/updates/new
Comment 2 Petr Menšík 2024-04-26 10:19:06 UTC 
I think filling this bug on dnsmasq component was a mistake. Dnsmasq does not have separate cache for different ECS responses nor it is able to flush them by specific parameters. It can flush whole cache anyway. There cannot be such vulnerability in dnsmasq and there is nothing to fix as a result.

Dnsmasq is not affected by thing in any version.