Bug 1914258 (CVE-2021-1723)

Summary:	CVE-2021-1723 dotnet: ASP.NET Core Callbacks outside of locks cause Krestel deadlock when using HTTP2
Product:	[Other] Security Response	Reporter:	Stefan Cornelius <scorneli>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	andrew.slice, bodavis, dbhole, kanderso, maltron, omajid, rwagner, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	NET Core SDK 3.1.111, NET Core Runtime 3.1.11, NET Core SDK 5.0.102, NET Core Runtime 5.0.2	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in dotnet. Running callbacks outside of locks results in Krestel deadlock using HTTP2. The highest threat from this vulnerability is to system availability.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-01-13 18:27:47 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:	1907626, 1907633, 1912568, 1912684, 1916625
Bug Blocks:	1914167

Description Stefan Cornelius 2021-01-08 13:14:39 UTC

Running callbacks outside of locks results in Krestel deadlock using HTTP2

Comment 8 Stefan Cornelius 2021-01-12 18:40:13 UTC

External References:

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-1723
https://github.com/dotnet/announcements/issues/170

Comment 9 errata-xmlrpc 2021-01-13 14:30:06 UTC

This issue has been addressed in the following products:

  .NET Core on Red Hat Enterprise Linux

Via RHSA-2021:0096 https://access.redhat.com/errata/RHSA-2021:0096

Comment 10 errata-xmlrpc 2021-01-13 14:32:34 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:0094 https://access.redhat.com/errata/RHSA-2021:0094

Comment 11 errata-xmlrpc 2021-01-13 14:33:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:0095 https://access.redhat.com/errata/RHSA-2021:0095

Comment 12 Product Security DevOps Team 2021-01-13 18:27:47 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-1723

Comment 13 errata-xmlrpc 2021-01-13 19:12:09 UTC

This issue has been addressed in the following products:

  .NET Core on Red Hat Enterprise Linux

Via RHSA-2021:0114 https://access.redhat.com/errata/RHSA-2021:0114