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.
References
Link Providers
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00068.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00071.html cve-icon cve-icon
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00081.html cve-icon cve-icon
http://packetstormsecurity.com/files/160393/Apache-2-HTTP2-Module-Concurrent-Pool-Usage.html cve-icon cve-icon
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11993 cve-icon cve-icon cve-icon
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r2c6083f6a2027914a0f5b54e2a1f4fa98c03f8693b58460911818255%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r5debe8f82728a00a4a68bc904dd6c35423bdfc8d601cfb4579f38bf1%40%3Cdev.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r623de9b2b2433a87f3f3a15900419fc9c00c77b26936dfea4060f672%40%3Cdev.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r9e9f1a7609760f0f80562eaaec2aa3c32d525c3e0fca98b475240c71%40%3Cdev.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rdf3e5d0a5f5c3d90d6013bccc6c4d5af59cf1f8c8dea5d9a283d13ce%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rf71eb428714374a6f9ad68952e23611ec7807b029fd6a1b4f5f732d9%40%3Ccvs.httpd.apache.org%3E cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4NKWG2EXAQQB6LMLATKZ7KLSRGCSHVAN/ cve-icon cve-icon
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITVFDBVM6E3JF3O7RYLRPRCH3RDRHJJY/ cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2020-11993 cve-icon
https://security.gentoo.org/glsa/202008-04 cve-icon cve-icon
https://security.netapp.com/advisory/ntap-20200814-0005/ cve-icon cve-icon
https://usn.ubuntu.com/4458-1/ cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2020-11993 cve-icon
https://www.debian.org/security/2020/dsa-4757 cve-icon cve-icon
https://www.oracle.com/security-alerts/cpujan2021.html cve-icon cve-icon
https://www.oracle.com/security-alerts/cpuoct2020.html cve-icon cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2020-08-07T15:32:55

Updated: 2024-08-04T11:48:57.265Z

Reserved: 2020-04-21T00:00:00

Link: CVE-2020-11993

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-08-07T16:15:11.887

Modified: 2023-11-07T03:15:18.140

Link: CVE-2020-11993

cve-icon Redhat

Severity : Moderate

Publid Date: 2020-08-07T00:00:00Z

Links: CVE-2020-11993 - Bugzilla