UBUNTU-CVE-2023-42795 (CVE-2023-42795)
Vulnerability from osv_ubuntu – Published: 2023-10-10 18:15 – Updated: 2026-07-15 17:34 – Source website
VLAI
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)
5.3 (Medium)
N/A (UNKNOWN)
References
{
"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",
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},
{
"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+esm2"
},
{
"binary_name": "libtomcat8-java",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
},
{
"binary_name": "tomcat8",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
},
{
"binary_name": "tomcat8-admin",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
},
{
"binary_name": "tomcat8-common",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
},
{
"binary_name": "tomcat8-docs",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
},
{
"binary_name": "tomcat8-examples",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
},
{
"binary_name": "tomcat8-user",
"binary_version": "8.0.32-1ubuntu1.13+esm2"
}
]
},
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "tomcat8",
"purl": "pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.13+esm2?arch=source\u0026distro=esm-infra-legacy/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",
"8.0.32-1ubuntu1.13+esm2"
]
},
{
"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": [
{
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},
{
"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": "2026-07-15T17:34:07Z",
"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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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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