Bug 1990295 (CVE-2021-26423) - CVE-2021-26423 dotnet: ASP.NET Core WebSocket frame processing DoS
Summary: CVE-2021-26423 dotnet: ASP.NET Core WebSocket frame processing DoS
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2021-26423
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1990310 1990311 1990312 1990313 1990314 1990315
Blocks: 1990033
TreeView+ depends on / blocked
 
Reported: 2021-08-05 08:02 UTC by Stefan Cornelius
Modified: 2021-08-18 15:52 UTC (History)
9 users (show)

Fixed In Version: SDK 3.1.118, Runtime 3.1.18, SDK 5.0.206, Runtime 5.0.9
Doc Type: If docs needed, set a value
Doc Text:
An infinite loop error was found in ASP.NET when processing WebSocket frames. The exploitation of this issue can cause high CPU resource consumption. The highest threat from this vulnerability is to system availability.
Clone Of:
Environment:
Last Closed: 2021-08-11 19:29:14 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2021:3213 0 None None None 2021-08-18 15:52:20 UTC
Red Hat Product Errata RHSA-2021:3142 0 None None None 2021-08-11 18:41:52 UTC
Red Hat Product Errata RHSA-2021:3143 0 None None None 2021-08-11 18:44:41 UTC
Red Hat Product Errata RHSA-2021:3147 0 None None None 2021-08-12 06:47:28 UTC
Red Hat Product Errata RHSA-2021:3148 0 None None None 2021-08-12 06:52:40 UTC

Description Stefan Cornelius 2021-08-05 08:02:22 UTC 
An infinite loop error was found in ASP.NET when processing WebSocket frames. This can be exploited to cause a high CPU resource consumption.
Comment 2 errata-xmlrpc 2021-08-11 18:41:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:3142 https://access.redhat.com/errata/RHSA-2021:3142
Comment 3 errata-xmlrpc 2021-08-11 18:44:39 UTC 
This issue has been addressed in the following products:

  .NET Core on Red Hat Enterprise Linux

Via RHSA-2021:3143 https://access.redhat.com/errata/RHSA-2021:3143
Comment 4 Product Security DevOps Team 2021-08-11 19:29:14 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-2021-26423
Comment 5 errata-xmlrpc 2021-08-12 06:47:26 UTC 
This issue has been addressed in the following products:

  .NET Core on Red Hat Enterprise Linux

Via RHSA-2021:3147 https://access.redhat.com/errata/RHSA-2021:3147
Comment 6 errata-xmlrpc 2021-08-12 06:52:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:3148 https://access.redhat.com/errata/RHSA-2021:3148
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