ubuntu-cve-2023-42795
Vulnerability from osv_ubuntu
Published
2023-10-10 18:15
Modified
2026-06-04 10:44
Summary
Details

Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.

Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libservlet2.4-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "libservlet2.5-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "libtomcat6-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6-admin",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6-common",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6-docs",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6-examples",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6-extras",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          },
          {
            "binary_name": "tomcat6-user",
            "binary_version": "6.0.39-1ubuntu0.1+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "tomcat6",
        "purl": "pkg:deb/ubuntu/tomcat6@6.0.39-1ubuntu0.1+esm3?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "6.0.37-1",
        "6.0.39-1",
        "6.0.39-1ubuntu0.1",
        "6.0.39-1ubuntu0.1+esm1",
        "6.0.39-1ubuntu0.1+esm2",
        "6.0.39-1ubuntu0.1+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libservlet3.0-java",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "libtomcat7-java",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "tomcat7",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "tomcat7-admin",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "tomcat7-common",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "tomcat7-docs",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "tomcat7-examples",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          },
          {
            "binary_name": "tomcat7-user",
            "binary_version": "7.0.52-1ubuntu0.16+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "tomcat7",
        "purl": "pkg:deb/ubuntu/tomcat7@7.0.52-1ubuntu0.16+esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.0.42-1",
        "7.0.47-1",
        "7.0.50-1",
        "7.0.52-1",
        "7.0.52-1ubuntu0.1",
        "7.0.52-1ubuntu0.3",
        "7.0.52-1ubuntu0.6",
        "7.0.52-1ubuntu0.7",
        "7.0.52-1ubuntu0.8",
        "7.0.52-1ubuntu0.9",
        "7.0.52-1ubuntu0.10",
        "7.0.52-1ubuntu0.11",
        "7.0.52-1ubuntu0.13",
        "7.0.52-1ubuntu0.14",
        "7.0.52-1ubuntu0.15",
        "7.0.52-1ubuntu0.16",
        "7.0.52-1ubuntu0.16+esm1",
        "7.0.52-1ubuntu0.16+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libservlet3.1-java",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "libtomcat8-java",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "tomcat8",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "tomcat8-admin",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "tomcat8-common",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "tomcat8-docs",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "tomcat8-examples",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          },
          {
            "binary_name": "tomcat8-user",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "tomcat8",
        "purl": "pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.13+esm1?arch=source\u0026distro=esm-infra/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.0.26-1",
        "8.0.28-1",
        "8.0.30-1",
        "8.0.32-1",
        "8.0.32-1ubuntu1",
        "8.0.32-1ubuntu1.1",
        "8.0.32-1ubuntu1.2",
        "8.0.32-1ubuntu1.3",
        "8.0.32-1ubuntu1.4",
        "8.0.32-1ubuntu1.5",
        "8.0.32-1ubuntu1.6",
        "8.0.32-1ubuntu1.7",
        "8.0.32-1ubuntu1.8",
        "8.0.32-1ubuntu1.9",
        "8.0.32-1ubuntu1.10",
        "8.0.32-1ubuntu1.11",
        "8.0.32-1ubuntu1.13",
        "8.0.32-1ubuntu1.13+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libservlet3.0-java",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "libtomcat7-java",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "tomcat7",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "tomcat7-admin",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "tomcat7-common",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "tomcat7-docs",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "tomcat7-examples",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          },
          {
            "binary_name": "tomcat7-user",
            "binary_version": "7.0.68-1ubuntu0.4+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "tomcat7",
        "purl": "pkg:deb/ubuntu/tomcat7@7.0.68-1ubuntu0.4+esm4?arch=source\u0026distro=esm-apps-legacy/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.0.64-1",
        "7.0.68-1",
        "7.0.68-1ubuntu0.1",
        "7.0.68-1ubuntu0.3",
        "7.0.68-1ubuntu0.4",
        "7.0.68-1ubuntu0.4+esm1",
        "7.0.68-1ubuntu0.4+esm2",
        "7.0.68-1ubuntu0.4+esm3",
        "7.0.68-1ubuntu0.4+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat8-embed-java",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "libtomcat8-java",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "tomcat8",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "tomcat8-admin",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "tomcat8-common",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "tomcat8-docs",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "tomcat8-examples",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          },
          {
            "binary_name": "tomcat8-user",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "tomcat8",
        "purl": "pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.3+esm5?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "8.5.39-1ubuntu1~18.04.3+esm5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "8.5.21-1ubuntu1",
        "8.5.29-1",
        "8.5.30-1",
        "8.5.30-1ubuntu1",
        "8.5.30-1ubuntu1.2",
        "8.5.30-1ubuntu1.3",
        "8.5.30-1ubuntu1.4",
        "8.5.39-1ubuntu1~18.04.1",
        "8.5.39-1ubuntu1~18.04.2",
        "8.5.39-1ubuntu1~18.04.3",
        "8.5.39-1ubuntu1~18.04.3+esm1",
        "8.5.39-1ubuntu1~18.04.3+esm2",
        "8.5.39-1ubuntu1~18.04.3+esm3",
        "8.5.39-1ubuntu1~18.04.3+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "tomcat9",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          },
          {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2+esm4?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.16-3ubuntu0.18.04.2+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.16-3~18.04.1",
        "9.0.16-3ubuntu0.18.04.1",
        "9.0.16-3ubuntu0.18.04.2",
        "9.0.16-3ubuntu0.18.04.2+esm1",
        "9.0.16-3ubuntu0.18.04.2+esm2",
        "9.0.16-3ubuntu0.18.04.2+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "tomcat9",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.31-1ubuntu0.8"
          },
          {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.31-1ubuntu0.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.31-1ubuntu0.8?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.31-1ubuntu0.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.24-1",
        "9.0.27-1",
        "9.0.31-1",
        "9.0.31-1ubuntu0.1",
        "9.0.31-1ubuntu0.2",
        "9.0.31-1ubuntu0.3",
        "9.0.31-1ubuntu0.4",
        "9.0.31-1ubuntu0.5",
        "9.0.31-1ubuntu0.6",
        "9.0.31-1ubuntu0.7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "tomcat9",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          },
          {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.58-1ubuntu0.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.58-1ubuntu0.1+esm4?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.58-1ubuntu0.1+esm4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.43-3",
        "9.0.54-1",
        "9.0.55-1",
        "9.0.58-1",
        "9.0.58-1ubuntu0.1",
        "9.0.58-1ubuntu0.1+esm1",
        "9.0.58-1ubuntu0.1+esm2",
        "9.0.58-1ubuntu0.1+esm3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.70-2ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:24.04:LTS",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.70-2ubuntu0.1+esm2?arch=source\u0026distro=esm-apps/noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.70-2ubuntu0.1+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.70-1ubuntu1",
        "9.0.70-2",
        "9.0.70-2ubuntu0.1",
        "9.0.70-2ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.70-2ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "tomcat9",
        "purl": "pkg:deb/ubuntu/tomcat9@9.0.70-2ubuntu3?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.0.70-2ubuntu3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "9.0.70-2ubuntu1.1",
        "9.0.70-2ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "Incomplete Cleanup vulnerability in Apache Tomcat.When recycling various internal objects in Apache Tomcat from 11.0.0-M1 through 11.0.0-M11, from 10.1.0-M1 through 10.1.13, from 9.0.0-M1 through 9.0.80 and from 8.5.0 through 8.5.93, an error could cause Tomcat to skip some parts of the recycling process leading to information leaking from the current request/response to the next. Older, EOL versions may\u00a0also be affected. Users are recommended to upgrade to version 11.0.0-M12 onwards, 10.1.14 onwards, 9.0.81 onwards or 8.5.94 onwards, which fixes the issue.",
  "id": "UBUNTU-CVE-2023-42795",
  "modified": "2026-06-04T10:44:40Z",
  "published": "2023-10-10T18:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-42795"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2023/10/10/9"
    },
    {
      "type": "REPORT",
      "url": "https://lists.apache.org/thread/065jfyo583490r9j2v73nhpyxdob56lw"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2023/10/10/9"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2023-42795"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7106-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7562-1"
    }
  ],
  "related": [
    "USN-7106-1",
    "USN-7562-1"
  ],
  "schema_version": "1.7.0",
  "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": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2023-42795"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.