Bug 1673891 (CVE-2019-0657)

Summary: CVE-2019-0657 dotnet: Domain-spoofing attack in System.Uri
Product: [Other] Security Response Reporter: Dhananjay Arunesh <darunesh>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: andrew.slice, bodavis, chazlett, dbhole, kanderso, omajid, rjanekov, rwagner, security-response-team
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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Last Closed: 2019-06-02 23:50:28 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Blocks: 1673896    

Description Dhananjay Arunesh 2019-02-08 11:47:10 UTC
It was found that the IdnHost property of System.Uri in .NET core insufficiently validates input. Certain Unicode characters can incorrectly change the meaning of the URI when IDN encoding is applied.

Comment 2 errata-xmlrpc 2019-02-14 04:40:03 UTC
This issue has been addressed in the following products:

  .NET Core on Red Hat Enterprise Linux

Via RHSA-2019:0349 https://access.redhat.com/errata/RHSA-2019:0349

Comment 3 Riccardo Schirone 2019-03-29 13:26:54 UTC
Reference:
https://github.com/dotnet/announcements/issues/97

Comment 4 Riccardo Schirone 2019-03-29 18:40:36 UTC
Upstream patch:
https://github.com/dotnet/corefx/commit/b8654425442fef4ba4b58510be53d9859887be1a