{
  "cveId": "CVE-2020-28196",
  "url": "https://patchblox.com/security/cve/CVE-2020-28196",
  "summary": "CVE-2020-28196 is fixed in 26 products on 1 platform, first by krb5-admin-server 1.16-2ubuntu0.2, released November 6, 2020. It is not reported as exploited. Patch Radar priority: High.",
  "title": "krb5-devel: Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecu...",
  "description": "Kerberos is a network authentication system, which can improve the security of your network by eliminating the insecure practice of sending passwords over the network in unencrypted form. It allows clients and servers to authenticate to each other with the help of a trusted third party, the Kerberos key distribution center (KDC).\n\nSecurity Fix(es):\n\n* krb5: unbounded recursion via an ASN.1-encoded Kerberos message in lib/krb5/asn.1/asn1_encode.c may lead to DoS (CVE-2020-28196)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.",
  "published": "2020-11-06T00:15:00Z",
  "severity": "Moderate",
  "cvss": 7.5,
  "epss": 0.04417,
  "epssPercentile": 0.91408,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
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      "released": "2020-11-06T00:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libkrb5support0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1.16-2ubuntu0.2",
      "fix": "libkrb5support0 1.16-2ubuntu0.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libkrb5support0-1.16-2ubuntu0.2",
      "released": "2020-11-06T00:15:00Z"
    },
    {
      "platform": "linux",
      "product": "libkrb5support0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1.17-6ubuntu4.1",
      "fix": "libkrb5support0 1.17-6ubuntu4.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libkrb5support0-1.17-6ubuntu4.1",
      "released": "2020-11-06T00:15:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}