Bug 2216624

Summary:	TRIAGE-CVE-2023-2829 dhcp: bind: DNSSEC-Validated cache can be remotely terminated with malformed NSEC record [fedora-37]
Product:	[Fedora] Fedora	Reporter:	Sandipan Roy <saroy>
Component:	dhcp	Assignee:	Martin Osvald 🛹 <mosvald>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	high	Docs Contact:
Priority:	high
Version:	37	CC:	jorton, mosvald, pavel, 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:	2023-06-23 07:29:14 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:	2216581

Description Sandipan Roy 2023-06-22 05:48:50 UTC

More information about this security flaw is available in the following bug:

http://bugzilla.redhat.com/show_bug.cgi?id=2216581

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 Sandipan Roy 2023-06-22 05:48:53 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=high

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=2216581,2216624

# 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 Martin Osvald 🛹 2023-06-23 07:29:14 UTC

Dhcp is not affected:

https://bugzilla.redhat.com/show_bug.cgi?id=2216581#c3
~~~
According to upstream article [1] this is only affecting supported preview version. We do not have it in RHEL or even in Fedora. 
That is also why upstream release notes [2] of latest 9.16 does not mention this vulnerability.
We are not affected by this one. In any release or component. Nor have a change to backport.

Can all those bugs be closed?

1. https://kb.isc.org/docs/cve-2023-2829
2. https://downloads.isc.org/isc/bind9/9.16.42/doc/arm/html/notes.html#security-fixes
~~~