CVE-2020-11993

CVSS V2 Medium 4.3 CVSS V3 High 7.5
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.
Overview
  • CVE ID
  • CVE-2020-11993
  • Assigner
  • security@apache.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2020-08-07T16:15:11
  • Last Modified Date
  • 2021-06-06T11:15:22
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:* 1 OR 2.4.20 2.4.43
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:communications_element_manager:*:*:*:*:*:*:*:* 1 OR 8.2.0 8.2.2
cpe:2.3:a:oracle:communications_session_report_manager:*:*:*:*:*:*:*:* 1 OR 8.2.0 8.2.2
cpe:2.3:a:oracle:communications_session_route_manager:*:*:*:*:*:*:*:* 1 OR 8.2.0 8.2.2
cpe:2.3:a:oracle:enterprise_manager_ops_center:12.4.0.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:hyperion_infrastructure_technology:11.1.2.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2020-11993 Vendor Advisory
https://security.gentoo.org/glsa/202008-04 Third Party Advisory
https://lists.apache.org/thread.html/r9e9f1a7609760f0f80562eaaec2aa3c32d525c3e0fca98b475240c71@%3Cdev.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r5debe8f82728a00a4a68bc904dd6c35423bdfc8d601cfb4579f38bf1@%3Cdev.httpd.apache.org%3E Mailing List Vendor Advisory
https://lists.apache.org/thread.html/r623de9b2b2433a87f3f3a15900419fc9c00c77b26936dfea4060f672@%3Cdev.httpd.apache.org%3E Mailing List Vendor Advisory
https://security.netapp.com/advisory/ntap-20200814-0005/ Third Party Advisory
https://usn.ubuntu.com/4458-1/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4NKWG2EXAQQB6LMLATKZ7KLSRGCSHVAN/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ITVFDBVM6E3JF3O7RYLRPRCH3RDRHJJY/ Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00068.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00071.html Mailing List Third Party Advisory
https://www.debian.org/security/2020/dsa-4757 Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00081.html Mailing List Third Party Advisory
http://packetstormsecurity.com/files/160393/Apache-2-HTTP2-Module-Concurrent-Pool-Usage.html Exploit Third Party Advisory VDB Entry
https://www.oracle.com/security-alerts/cpujan2021.html Third Party Advisory
https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rdf3e5d0a5f5c3d90d6013bccc6c4d5af59cf1f8c8dea5d9a283d13ce@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r09bb998baee74a2c316446bd1a41ae7f8d7049d09d9ff991471e8775@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r2c6083f6a2027914a0f5b54e2a1f4fa98c03f8693b58460911818255@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/rf71eb428714374a6f9ad68952e23611ec7807b029fd6a1b4f5f732d9@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r3c5c3104813c1c5508b55564b66546933079250a46ce50eee90b2e36@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E
History
Created Old Value New Value Data Type Notes
2022-05-10 16:12:18 Added to TrackCVE
2022-12-04 20:40:12 2020-08-07T16:15Z 2020-08-07T16:15:11 CVE Published Date updated
2022-12-04 20:40:13 2021-06-06T11:15:22 CVE Modified Date updated
2022-12-04 20:40:13 Modified Vulnerability Status updated