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Date: Mon, 01 Apr 2019 20:31:24 -0500
From: Daniel Ruggeri <>
Subject: CVE-2019-0196: mod_http2, read-after-free on a string compare

CVE-2019-0196: mod_http2, read-after-free on a string compare

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected:
httpd 2.4.17 to 2.4.38

Using fuzzed network input, the http/2 request
handling could be made to access freed memory in string
comparision when determining the method of a request and
thus process the request incorrectly.
All httpd users deploying mod_http2 should upgrade to 2.4.39 or later.

The issue was discovered by Craig Young, <>.


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