Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2024-03-06 11:09

Modified

2025-05-20 10:02

Summary

Apache Tomcat DoS with unexpected TLS packet

Details

Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "tomcat",
        "purl": "pkg:bitnami/tomcat"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "8.5.0"
            },
            {
              "fixed": "8.5.64"
            },
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.0.44"
            },
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.3"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-41079"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"
    ],
    "severity": "High"
  },
  "details": "Apache Tomcat 8.5.0 to 8.5.63, 9.0.0-M1 to 9.0.43 and 10.0.0-M1 to 10.0.2 did not properly validate incoming TLS packets. When Tomcat was configured to use NIO+OpenSSL or NIO2+OpenSSL for TLS, a specially crafted packet could be used to trigger an infinite loop resulting in a denial of service.",
  "id": "BIT-tomcat-2021-41079",
  "modified": "2025-05-20T10:02:07.006Z",
  "published": "2024-03-06T11:09:56.377Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r6b6b674e3f168dd010e67dbe6848b866e2acf26371452fdae313b98a%40%3Cusers.tomcat.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rb4de81ac647043541a32881099aa6eb5a23f1b7fd116f713f8ab9dbe%40%3Cdev.tomcat.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rccdef0349fdf4fb73a4e4403095446d7fe6264e0a58e2df5c6799434%40%3Cannounce.tomcat.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/09/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20211008-0005/"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4986"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41079"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Apache Tomcat DoS with unexpected TLS packet"
}

CVE-2021-41079 (GCVE-0-2021-41079)

Vulnerability from cvelistv5 – Published: 2021-09-16 14:40 – Updated: 2024-08-04 02:59

Title

Apache Tomcat DoS with unexpected TLS packet

Summary

Severity ?

No CVSS data available.

CWE

CWE-20 - Improper Input Validation

Assigner

apache

References

URL

Tags

	https://lists.apache.org/thread.html/rccdef0349fd…	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
	https://security.netapp.com/advisory/ntap-2021100…	x_refsource_CONFIRM
	https://lists.apache.org/thread.html/rb4de81ac647…	mailing-listx_refsource_MLIST
	https://lists.apache.org/thread.html/r6b6b674e3f1…	mailing-listx_refsource_MLIST
	https://www.debian.org/security/2021/dsa-4986	vendor-advisoryx_refsource_DEBIAN

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache Tomcat	Affected: Apache Tomcat 8.5 8.5.0 to 8.5.63 Affected: Apache Tomcat 9 9.0.0-M1 to 9.0.43 Affected: Apache Tomcat 10 10.0.0-M1 to 10.0.2

Credits

The Apache Tomcat security team would like to thank Thomas Wozenilek for originally reporting this issue and David Frankson of Infinite Campus for also providing a test case that reproduced the issue.

Show details on NVD website

JSON

To clipboard

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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-2021-41079 (GCVE-0-2021-41079)

Tags

Sightings

Nomenclature