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Date: Mon, 01 Apr 2019 20:31:27 -0500
From: Daniel Ruggeri <>
Subject: CVE-2019-0215: mod_ssl access control bypass

CVE-2019-0215: mod_ssl access control bypass

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
httpd 2.4.27 to 2.4.38

In Apache HTTP Server 2.4 releases 2.4.37 and 2.4.38, a
bug in mod_ssl when using per-location client certificate
verification with TLSv1.3 allowed a client to bypass
configured access control restrictions.
This issue can be mitigated by disabling the TLSv1.3 protocol for a
VirtualHost which requires per-location or per-directory client
certificate authentication.

The issue was discovered by Michael Kaufmann.


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