CVE-2023-42795 (GCVE-0-2023-42795)

Vulnerability from cvelistv5 – Published: 2023-10-10 17:42 – Updated: 2025-10-29 12:02
VLAI
Title
Apache Tomcat: Failure during request clean-up leads to sensitive data leaking to subsequent requests
Summary
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
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Tomcat Affected: 11.0.0-M1 , ≤ 11.0.0-M11 (semver)
Affected: 10.1.0-M1 , ≤ 10.1.13 (semver)
Affected: 9.0.0-M1 , ≤ 9.0.80 (semver)
Affected: 8.5.0 , ≤ 8.5.93 (semver)
Unknown: 3 , < 8.5.0 (semver)
Unknown: 10.0.0-M1 , ≤ 10.0.27 (semver)
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apache accumulo Affected: 11.0.0-m1
Affected: 10.10-m1 , ≤ 10.1.13 (semver)
Affected: 9.0.0-m1 , ≤ 9.0.80 (semver)
Affected: 8.5.0 , ≤ 8.5.93 (semver)
    cpe:2.3:a:apache:accumulo:-:*:*:*:*:*:*:*
 Create a notification for this product.
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      "descriptions": "[{\"lang\": \"en\", \"value\": \"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 \\ncause Tomcat to skip some parts of the recycling process leading to \\ninformation leaking from the current request/response to the next.\\n\\nUsers 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.\\n\\n\"}, {\"lang\": \"es\", \"value\": \"Vulnerabilidad de limpieza incompleta en Apache Tomcat. Al reciclar varios objetos internos en Apache Tomcat desde 11.0.0-M1 hasta 11.0.0-M11, desde 10.1.0-M1 hasta 10.1.13, desde 9.0.0-M1 hasta 9.0.80 y Desde 8.5.0 hasta 8.5.93, un error podr\\u00eda hacer que Tomcat se salte algunas partes del proceso de reciclaje, lo que provocar\\u00eda que se filtrara informaci\\u00f3n de la solicitud/respuesta actual a la siguiente. Se recomienda a los usuarios actualizar a la versi\\u00f3n 11.0.0-M12 en adelante, 10.1.14 en adelante, 9.0.81 en adelante o 8.5.94 en adelante, lo que soluciona el problema.\"}]",
      "id": "CVE-2023-42795",
      "lastModified": "2024-11-21T08:23:10.213",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 1.4}]}",
      "published": "2023-10-10T18:15:18.933",
      "references": "[{\"url\": \"http://www.openwall.com/lists/oss-security/2023/10/10/9\", \"source\": \"security@apache.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://lists.apache.org/thread/065jfyo583490r9j2v73nhpyxdob56lw\", \"source\": \"security@apache.org\", \"tags\": [\"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html\", \"source\": \"security@apache.org\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20231103-0007/\", \"source\": \"security@apache.org\"}, {\"url\": \"https://www.debian.org/security/2023/dsa-5521\", \"source\": \"security@apache.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.debian.org/security/2023/dsa-5522\", \"source\": \"security@apache.org\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"http://www.openwall.com/lists/oss-security/2023/10/10/9\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://lists.apache.org/thread/065jfyo583490r9j2v73nhpyxdob56lw\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Vendor Advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/10/msg00020.html\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Mailing List\", \"Third Party Advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20231103-0007/\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\"}, {\"url\": \"https://www.debian.org/security/2023/dsa-5521\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://www.debian.org/security/2023/dsa-5522\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "security@apache.org",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"security@apache.org\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-459\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-42795\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2023-10-10T18:15:18.933\",\"lastModified\":\"2025-08-07T11:15:27.710\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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 \\ncause Tomcat to skip some parts of the recycling process leading to \\ninformation leaking from the current request/response to the next.\\nOlder, EOL versions may\u00a0also be affected.\\n\\n\\nUsers 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.\"},{\"lang\":\"es\",\"value\":\"Vulnerabilidad de limpieza incompleta en Apache Tomcat. 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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.