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Message-ID: <1596799898.LUXZKPQK@httpd.apache.org>
Date: Fri, 07 Aug 2020 06:31:38 -0500
From: Daniel Ruggeri <druggeri@...che.org>
To: oss-security@...ts.openwall.com
Subject: CVE-2020-11993: Apache httpd: Push Diary Crash on Specifically Crafted HTTP/2 Header
CVE-2020-11993: Push Diary Crash on Specifically Crafted HTTP/2 Header
Severity: moderate
Vendor: Apache Software Foundation
Versions Affected:
Apache HTTP Server 2.4.20 to 2.4.43
Description:
Apache HTTP Server versions 2.4.20 to 2.4.43
When trace/debug was enabled for the HTTP/2 module and on
certain traffic edge patterns, logging statements were made on
the wrong connection, causing concurrent use of memory pools.
Configuring the LogLevel of mod_http2 above "info" will mitigate this vulnerability for unpatched servers.
Mitigation:
Credit:
Felix Wilhelm of Google Project Zero
References:
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11993
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