{
  "cveId": "CVE-2021-21424",
  "url": "https://patchblox.com/security/cve/CVE-2021-21424",
  "summary": "CVE-2021-21424 is fixed in 64 products on 1 platform, first by php-symfony 3.4.6\u002Bdfsg-1ubuntu0.1\u002Besm2, released May 13, 2021. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "php-symfony: Symfony is a PHP framework for web and console applications and a set of reusable PHP components",
  "description": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.",
  "published": "2021-05-13T09:15:00Z",
  "severity": "Low",
  "epss": 0.01644,
  "epssPercentile": 0.76595,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "platform": "linux",
      "product": "php-symfony",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "3.4.6\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "fix": "php-symfony 3.4.6\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-php-symfony-3.4.6-dfsg-1ubuntu0.1-esm2",
      "released": "2021-05-13T09:15:00Z"
    },
    {
      "platform": "linux",
      "product": "php-symfony",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.3.8\u002Bdfsg-1ubuntu1\u002Besm1",
      "fix": "php-symfony 4.3.8\u002Bdfsg-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-php-symfony-4.3.8-dfsg-1ubuntu1-esm1",
      "released": "2021-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "php-symfony-amazon-mailer",
      "release": "Ubuntu 20.04 LTS (focal)",
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      "fix": "php-symfony-amazon-mailer 4.3.8\u002Bdfsg-1ubuntu1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-php-symfony-amazon-mailer-4.3.8-dfsg-1ubuntu1-esm1",
      "released": "2021-11-24T11:15:00Z"
    },
    {
      "platform": "linux",
      "product": "php-symfony-asset",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
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      "fix": "php-symfony-asset 3.4.6\u002Bdfsg-1ubuntu0.1\u002Besm2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-php-symfony-asset-3.4.6-dfsg-1ubuntu0.1-esm2",
      "released": "2021-05-13T09:15:00Z"
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      "released": "2021-11-24T11:15:00Z"
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      "product": "php-symfony-browser-kit",
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      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-php-symfony-browser-kit-3.4.6-dfsg-1ubuntu0.1-esm2",
      "released": "2021-05-13T09:15:00Z"
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      "released": "2021-05-13T09:15:00Z"
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      "released": "2021-11-24T11:15:00Z"
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}