CVE-2020-11993 (GCVE-0-2020-11993)

Vulnerability from cvelistv5 – Published: 2020-08-07 15:32 – Updated: 2024-08-04 11:48
VLAI
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • Push Diary Crash on Specifically Crafted HTTP/2 Header
Assigner
apache CNA under the mitre root
CNA scorecard B 76/100 over 936 records in the last 180 days details
References
URL Tags
https://httpd.apache.org/security/vulnerabilities… x_refsource_MISC
https://security.gentoo.org/glsa/202008-04 vendor-advisoryx_refsource_GENTOO
https://lists.apache.org/thread.html/r9e9f1a76097… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r5debe8f8272… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r623de9b2b24… mailing-listx_refsource_MLIST
https://usn.ubuntu.com/4458-1/ vendor-advisoryx_refsource_UBUNTU
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac… vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://www.debian.org/security/2020/dsa-4757 vendor-advisoryx_refsource_DEBIAN
https://www.oracle.com/security-alerts/cpuoct2020.html x_refsource_MISC
https://security.netapp.com/advisory/ntap-2020081… x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://www.oracle.com/security-alerts/cpujan2021.html x_refsource_MISC
http://packetstormsecurity.com/files/160393/Apach… x_refsource_MISC
https://lists.apache.org/thread.html/rf6449464fd8… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r06f0d87ebb6… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r09bb998baee… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rc998b18880d… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rdf3e5d0a5f5… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r9f93cf6dde3… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r3c5c3104813… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/rf71eb428714… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r2c6083f6a20… mailing-listx_refsource_MLIST
https://lists.apache.org/thread.html/r76142b8c511… mailing-listx_refsource_MLIST
Impacted products
Vendor Product Version CPE status
n/a Apache HTTP Server Affected: 2.4.20 to 2.4.43
Show details on NVD website
To clipboard 

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        "sourceIdentifier": "security@apache.org",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-444"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
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    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-09-21T05:39:19+00:00",
      "cve": "CVE-2020-11993",
      "id": "CVE-2020-11993",
      "initial_release_date": "2020-08-07T00:00:00+00:00",
      "product_status:fixed": "361",
      "product_status:known_affected": "3",
      "product_status:known_not_affected": "16",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "httpd: mod_http2 concurrent pool usage",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2020/cve-2020-11993.json",
      "version": "3"
    }
  }
}



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