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.
Published: 2020-08-07
Score: 7.5 High
EPSS: 33.4% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-4757-1 apache2 security update
Ubuntu USN Ubuntu USN USN-4458-1 Apache HTTP Server vulnerabilities
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

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Subscriptions

Apache Http Server
Canonical Ubuntu Linux
Debian Debian Linux
Fedoraproject Fedora
Netapp Clustered Data Ontap
Opensuse Leap
Oracle Communications Element Manager Communications Session Report Manager Communications Session Route Manager Enterprise Manager Ops Center Hyperion Infrastructure Technology Instantis Enterprisetrack Zfs Storage Appliance Kit
Redhat Enterprise Linux Jboss Core Services Rhel Software Collections
cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

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

Reserved: 2020-04-21T00:00:00.000Z

Link: CVE-2020-11993

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

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

Modified: 2025-05-01T15:40:19.830

Link: CVE-2020-11993

cve-icon Redhat

Severity : Moderate

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

Links: CVE-2020-11993 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses