usn-4557-1
Vulnerability from osv_ubuntu
Published
2020-09-30 12:55
Modified
2026-04-27 14:11
Summary
tomcat6 vulnerabilities
Details

It was discovered that the Tomcat realm implementations incorrectly handled passwords when a username didn't exist. A remote attacker could possibly use this issue to enumerate usernames. (CVE-2016-0762)

Alvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly limited use of a certain utility method. A malicious application could possibly use this to bypass Security Manager restrictions. (CVE-2016-5018)

It was discovered that Tomcat incorrectly controlled reading system properties. A malicious application could possibly use this to bypass Security Manager restrictions. (CVE-2016-6794)

It was discovered that Tomcat incorrectly controlled certain configuration parameters. A malicious application could possibly use this to bypass Security Manager restrictions. (CVE-2016-6796)

It was discovered that Tomcat incorrectly limited access to global JNDI resources. A malicious application could use this to access any global JNDI resource without an explicit ResourceLink. (CVE-2016-6797)

Regis Leroy discovered that Tomcat incorrectly filtered certain invalid characters from the HTTP request line. A remote attacker could possibly use this issue to inject data into HTTP responses. (CVE-2016-6816)

Pierre Ernst discovered that the Tomcat JmxRemoteLifecycleListener did not implement a recommended fix. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2016-8735)

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2016-0762",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-6794",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-6796",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-6797",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-6816",
              "severity": [
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2016-8735",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "high",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libservlet2.5-java",
            "binary_version": "6.0.45+dfsg-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "tomcat6",
        "purl": "pkg:deb/ubuntu/tomcat6@6.0.45+dfsg-1ubuntu0.1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "6.0.45+dfsg-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.41-4",
        "6.0.45+dfsg-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the Tomcat realm implementations incorrectly handled\npasswords when a username didn\u0027t exist. A remote attacker could possibly\nuse this issue to enumerate usernames. (CVE-2016-0762)\n\nAlvaro Munoz and Alexander Mirosh discovered that Tomcat incorrectly\nlimited use of a certain utility method. A malicious application could\npossibly use this to bypass Security Manager restrictions. (CVE-2016-5018)\n\nIt was discovered that Tomcat incorrectly controlled reading system\nproperties. A malicious application could possibly use this to bypass\nSecurity Manager restrictions. (CVE-2016-6794)\n\nIt was discovered that Tomcat incorrectly controlled certain configuration\nparameters. A malicious application could possibly use this to bypass\nSecurity Manager restrictions. (CVE-2016-6796)\n\nIt was discovered that Tomcat incorrectly limited access to global JNDI\nresources. A malicious application could use this to access any global JNDI\nresource without an explicit ResourceLink. (CVE-2016-6797)\n\nRegis Leroy discovered that Tomcat incorrectly filtered certain invalid\ncharacters from the HTTP request line. A remote attacker could possibly\nuse this issue to inject data into HTTP responses. (CVE-2016-6816)\n\nPierre Ernst discovered that the Tomcat JmxRemoteLifecycleListener did not\nimplement a recommended fix. A remote attacker could possibly use this\nissue to execute arbitrary code. (CVE-2016-8735)\n",
  "id": "USN-4557-1",
  "modified": "2026-04-27T14:11:25Z",
  "published": "2020-09-30T12:55:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4557-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-0762"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-5018"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-6794"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-6796"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-6797"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-6816"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2016-8735"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "tomcat6 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2016-0762",
    "UBUNTU-CVE-2016-5018",
    "UBUNTU-CVE-2016-6794",
    "UBUNTU-CVE-2016-6796",
    "UBUNTU-CVE-2016-6797",
    "UBUNTU-CVE-2016-6816",
    "UBUNTU-CVE-2016-8735"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.