Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 11:11

Modified

2025-11-06 13:25

Summary

Details

If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "tomcat",
        "purl": "pkg:bitnami/tomcat"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.5.0"
            },
            {
              "fixed": "8.5.1"
            },
            {
              "introduced": "8.5.1"
            },
            {
              "fixed": "8.5.2"
            },
            {
              "introduced": "8.5.2"
            },
            {
              "fixed": "8.5.3"
            },
            {
              "introduced": "8.5.3"
            },
            {
              "fixed": "8.5.4"
            },
            {
              "introduced": "8.5.4"
            },
            {
              "fixed": "8.5.5"
            },
            {
              "introduced": "8.5.5"
            },
            {
              "fixed": "8.5.6"
            },
            {
              "introduced": "8.5.6"
            },
            {
              "fixed": "8.5.7"
            },
            {
              "introduced": "8.5.7"
            },
            {
              "fixed": "8.5.8"
            },
            {
              "introduced": "8.5.8"
            },
            {
              "fixed": "8.5.9"
            },
            {
              "introduced": "8.5.9"
            },
            {
              "fixed": "8.5.10"
            },
            {
              "introduced": "8.5.10"
            },
            {
              "fixed": "8.5.11"
            },
            {
              "introduced": "8.5.11"
            },
            {
              "fixed": "8.5.12"
            },
            {
              "introduced": "8.5.12"
            },
            {
              "fixed": "8.5.13"
            },
            {
              "introduced": "8.5.13"
            },
            {
              "fixed": "8.5.14"
            },
            {
              "introduced": "8.5.14"
            },
            {
              "fixed": "8.5.15"
            },
            {
              "introduced": "8.5.15"
            },
            {
              "fixed": "8.5.16"
            },
            {
              "introduced": "8.5.16"
            },
            {
              "fixed": "8.5.17"
            },
            {
              "introduced": "8.5.17"
            },
            {
              "fixed": "8.5.18"
            },
            {
              "introduced": "8.5.18"
            },
            {
              "fixed": "8.5.19"
            },
            {
              "introduced": "8.5.19"
            },
            {
              "fixed": "8.5.20"
            },
            {
              "introduced": "8.5.20"
            },
            {
              "fixed": "8.5.21"
            },
            {
              "introduced": "8.5.21"
            },
            {
              "fixed": "8.5.22"
            },
            {
              "introduced": "8.5.22"
            },
            {
              "fixed": "8.5.23"
            },
            {
              "introduced": "8.5.23"
            },
            {
              "fixed": "8.5.24"
            },
            {
              "introduced": "8.5.24"
            },
            {
              "fixed": "8.5.25"
            },
            {
              "introduced": "8.5.25"
            },
            {
              "fixed": "8.5.26"
            },
            {
              "introduced": "8.5.26"
            },
            {
              "fixed": "8.5.27"
            },
            {
              "introduced": "8.5.27"
            },
            {
              "fixed": "8.5.28"
            },
            {
              "introduced": "8.5.28"
            },
            {
              "fixed": "8.5.29"
            },
            {
              "introduced": "8.5.29"
            },
            {
              "fixed": "8.5.30"
            },
            {
              "introduced": "8.5.30"
            },
            {
              "fixed": "8.5.31"
            },
            {
              "introduced": "8.5.31"
            },
            {
              "fixed": "8.5.32"
            },
            {
              "introduced": "8.5.32"
            },
            {
              "fixed": "8.5.33"
            },
            {
              "introduced": "8.5.33"
            },
            {
              "fixed": "8.5.34"
            },
            {
              "introduced": "8.5.34"
            },
            {
              "fixed": "8.5.35"
            },
            {
              "introduced": "8.5.35"
            },
            {
              "fixed": "8.5.36"
            },
            {
              "introduced": "8.5.36"
            },
            {
              "fixed": "8.5.37"
            },
            {
              "introduced": "8.5.37"
            },
            {
              "fixed": "8.5.38"
            },
            {
              "introduced": "8.5.38"
            },
            {
              "fixed": "8.5.39"
            },
            {
              "introduced": "8.5.39"
            },
            {
              "fixed": "8.5.40"
            },
            {
              "introduced": "8.5.40"
            },
            {
              "fixed": "8.5.41"
            },
            {
              "introduced": "8.5.41"
            },
            {
              "fixed": "8.5.42"
            },
            {
              "introduced": "8.5.42"
            },
            {
              "fixed": "8.5.43"
            },
            {
              "introduced": "8.5.43"
            },
            {
              "fixed": "8.5.44"
            },
            {
              "introduced": "8.5.44"
            },
            {
              "fixed": "8.5.45"
            },
            {
              "introduced": "8.5.45"
            },
            {
              "fixed": "8.5.46"
            },
            {
              "introduced": "8.5.46"
            },
            {
              "fixed": "8.5.47"
            },
            {
              "introduced": "8.5.47"
            },
            {
              "fixed": "8.5.48"
            },
            {
              "introduced": "8.5.48"
            },
            {
              "fixed": "8.5.49"
            },
            {
              "introduced": "8.5.49"
            },
            {
              "fixed": "8.5.50"
            },
            {
              "introduced": "8.5.50"
            },
            {
              "fixed": "8.5.51"
            },
            {
              "introduced": "8.5.51"
            },
            {
              "fixed": "8.5.52"
            },
            {
              "introduced": "8.5.52"
            },
            {
              "fixed": "8.5.53"
            },
            {
              "introduced": "8.5.53"
            },
            {
              "fixed": "8.5.54"
            },
            {
              "introduced": "8.5.54"
            },
            {
              "fixed": "8.5.55"
            },
            {
              "introduced": "8.5.55"
            },
            {
              "fixed": "8.5.56"
            },
            {
              "introduced": "8.5.56"
            },
            {
              "fixed": "8.5.57"
            },
            {
              "introduced": "8.5.57"
            },
            {
              "fixed": "8.5.58"
            },
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.0.38"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2020-13943"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone1:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone2:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone3:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone4:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone5:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone6:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:10.0.0:milestone7:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.0:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.10:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.11:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.12:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.13:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.14:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.15:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.16:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.17:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.18:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.19:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.20:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.21:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.22:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.23:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.24:*:*:*:*:*:*:*",
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      "cpe:2.3:a:apache:tomcat:8.5.29:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.30:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.31:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.32:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.33:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.34:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.35:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.36:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.37:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.38:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.39:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.40:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.41:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.42:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.43:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.44:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.45:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.46:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.47:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.48:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.49:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.50:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.51:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.52:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.53:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.54:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.55:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.56:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.57:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.7:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.8:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:8.5.9:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone10:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone11:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone12:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone13:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone14:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone15:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone16:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone17:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone18:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone19:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone20:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone21:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone22:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone23:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone24:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone25:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone26:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone27:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone5:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone6:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone7:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone8:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.0:milestone9:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.10:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.11:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.12:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.13:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.14:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.15:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.16:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.17:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.18:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.19:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.1:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.20:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.21:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.22:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.23:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.24:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.25:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.26:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.27:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.28:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.29:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.2:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.30:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.31:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.32:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.33:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.34:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.35:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.36:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.37:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.3:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.4:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.5:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.6:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.7:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.8:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:9.0.9:*:*:*:*:*:*:*",
      "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.",
  "id": "BIT-tomcat-2020-13943",
  "modified": "2025-11-06T13:25:46.476Z",
  "published": "2024-03-06T11:11:40.396Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00002.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00021.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00019.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20201016-0007/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4835"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-13943"
    }
  ],
  "schema_version": "1.5.0"
}

CVE-2020-13943 (GCVE-0-2020-13943)

Vulnerability from cvelistv5 – Published: 2020-10-12 13:46 – Updated: 2024-08-04 12:32

Summary

Severity ?

No CVSS data available.

CWE

Information Disclosure

Assigner

apache

References

URL

Tags

	https://lists.apache.org/thread.html/r4a390027eb2…	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST
	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/2021/dsa-4835	vendor-advisoryx_refsource_DEBIAN
	https://www.oracle.com/security-alerts/cpuApr2021.html	x_refsource_MISC
	https://security.netapp.com/advisory/ntap-2020101…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	Apache Tomcat	Affected: Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37, 8.5.0 to 8.5.57

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from bitnami_vulndb

CVE-2020-13943 (GCVE-0-2020-13943)

Tags

Sightings

Nomenclature