{
  "cveId": "CVE-2021-25122",
  "url": "https://patchblox.com/security/cve/CVE-2021-25122",
  "summary": "CVE-2021-25122 is fixed in 16 products on 1 platform, first by libtomcat9-embed-java 9.0.16-3ubuntu0.18.04.2, released September 16, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "libtomcat8-embed-java: When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8....",
  "description": "When responding to new h2c connection requests, Apache Tomcat versions 10.0.0-M1 to 10.0.0, 9.0.0.M1 to 9.0.41 and 8.5.0 to 8.5.61 could duplicate request headers and a limited amount of request body from one request to another meaning user A and user B could both see the results of user A\u0027s request.",
  "published": "2021-03-01T04:15:00Z",
  "severity": "Medium",
  "epss": 0.18114,
  "epssPercentile": 0.97219,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libtomcat8-embed-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "libtomcat8-embed-java 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libtomcat8-embed-java-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libtomcat8-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "libtomcat8-java 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libtomcat8-java-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libtomcat9-embed-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "libtomcat9-embed-java 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libtomcat9-embed-java-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libtomcat9-embed-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "libtomcat9-embed-java 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libtomcat9-embed-java-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libtomcat9-java",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "libtomcat9-java 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libtomcat9-java-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libtomcat9-java",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "libtomcat9-java 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libtomcat9-java-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat8",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "tomcat8 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat8-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat8-admin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "tomcat8-admin 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat8-admin-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat8-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "tomcat8-common 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat8-common-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat8-docs",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "tomcat8-docs 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat8-docs-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat8-examples",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "tomcat8-examples 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat8-examples-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat8-user",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "fix": "tomcat8-user 8.5.39-1ubuntu1~18.04.3\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat8-user-8.5.39-1ubuntu1-18.04.3-esm2",
      "released": "2022-05-12T01:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "tomcat9 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat9-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "tomcat9 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tomcat9-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-admin",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "tomcat9-admin 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat9-admin-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-admin",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "tomcat9-admin 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tomcat9-admin-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-common",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "tomcat9-common 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat9-common-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-common",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "tomcat9-common 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tomcat9-common-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-docs",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "tomcat9-docs 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat9-docs-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-docs",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "tomcat9-docs 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tomcat9-docs-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-examples",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "tomcat9-examples 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat9-examples-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-examples",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "tomcat9-examples 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tomcat9-examples-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-user",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "9.0.16-3ubuntu0.18.04.2",
      "fix": "tomcat9-user 9.0.16-3ubuntu0.18.04.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tomcat9-user-9.0.16-3ubuntu0.18.04.2",
      "released": "2021-09-16T08:15:00Z"
    },
    {
      "platform": "linux",
      "product": "tomcat9-user",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "9.0.31-1ubuntu0.2",
      "fix": "tomcat9-user 9.0.31-1ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tomcat9-user-9.0.31-1ubuntu0.2",
      "released": "2021-09-16T08:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T19:38:12Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}