Bug 2290846

Summary:	CVE-2023-51847 libcoap: remote attacker to cause a denial of service via thecoap_context_t [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Rohit Keshri <rkeshri>
Component:	libcoap	Assignee:	Peter Robinson <pbrobinson>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	40	CC:	pbrobinson
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:	libcoap-4.3.5-6.fc41	Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-09-13 20:54:38 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:	2290845

Description Rohit Keshri 2024-06-07 08:34:25 UTC

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

http://bugzilla.redhat.com/show_bug.cgi?id=2290845

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 Rohit Keshri 2024-06-07 08:34:28 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=2290845,2290846

# 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 Peter Robinson 2024-06-07 09:01:42 UTC

Hi Rohit,

Taking a look at the CVE details (https://www.cve.org/CVERecord?id=CVE-2023-51847) it mentions v.a3ed466 and that git commit is only in 4.3.5-rc1 ($ git tag --contains a3ed466) where as Fedora has 4.3.4a so I don't believe we're actually vulnerable as we don't use random git commits. Do you have more information that indicates 4.3.4a is vulnerable?

Comment 4 Fedora Update System 2024-09-07 12:50:43 UTC

FEDORA-2024-9c7bbee0f0 (libcoap-4.3.5-6.fc41) has been submitted as an update to Fedora 41.
https://bodhi.fedoraproject.org/updates/FEDORA-2024-9c7bbee0f0

Comment 5 Fedora Update System 2024-09-09 02:07:08 UTC

FEDORA-2024-9c7bbee0f0 has been pushed to the Fedora 41 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2024-9c7bbee0f0`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2024-9c7bbee0f0

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Peter Robinson 2024-09-12 18:53:21 UTC

(In reply to Peter Robinson from comment #2)
> Hi Rohit,
> 
> Taking a look at the CVE details
> (https://www.cve.org/CVERecord?id=CVE-2023-51847) it mentions v.a3ed466 and
> that git commit is only in 4.3.5-rc1 ($ git tag --contains a3ed466) where as
> Fedora has 4.3.4a so I don't believe we're actually vulnerable as we don't
> use random git commits. Do you have more information that indicates 4.3.4a
> is vulnerable?

Hey, you've not clarified, please do so. Details are useful :)

Comment 7 Fedora Update System 2024-09-13 20:54:38 UTC

FEDORA-2024-9c7bbee0f0 (libcoap-4.3.5-6.fc41) has been pushed to the Fedora 41 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Rohit Keshri 2024-10-10 09:31:59 UTC

(In reply to Peter Robinson from comment #6)
> (In reply to Peter Robinson from comment #2)
> > Hi Rohit,
> > 
> > Taking a look at the CVE details
> > (https://www.cve.org/CVERecord?id=CVE-2023-51847) it mentions v.a3ed466 and
> > that git commit is only in 4.3.5-rc1 ($ git tag --contains a3ed466) where as
> > Fedora has 4.3.4a so I don't believe we're actually vulnerable as we don't
> > use random git commits. Do you have more information that indicates 4.3.4a
> > is vulnerable?
> 
> Hey, you've not clarified, please do so. Details are useful :)

Thanks but I did not get any more info for this by the researcher, and now since this is already done, I think we will not need any further action on this.