{
  "fix": "RLSA-2021:4160",
  "url": "https://patchblox.com/security/fix/linux/rlsa-2021-4160",
  "summary": "RLSA-2021:4160, released November 9, 2021, fixes 7 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 4 packages",
  "released": "2021-11-09T08:26:25Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2021-3737, high severity",
  "supported": true,
  "cveCount": 7,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.13166,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://errata.rockylinux.org/RLSA-2021:4160",
  "appliesTo": [
    {
      "product": "pybind11",
      "productUrl": "https://patchblox.com/security/product/linux/pybind11",
      "release": "rocky 8",
      "fixedVersion": "0:2.6.1-2.module\u002Bel8.4.0\u002B574\u002B843c4898",
      "supported": true
    },
    {
      "product": "python-iniconfig",
      "productUrl": "https://patchblox.com/security/product/linux/python-iniconfig",
      "release": "rocky 8",
      "fixedVersion": "0:1.1.1-2.module\u002Bel8.4.0\u002B574\u002B843c4898",
      "supported": true
    },
    {
      "product": "python-toml",
      "productUrl": "https://patchblox.com/security/product/linux/python-toml",
      "release": "rocky 8",
      "fixedVersion": "0:0.10.1-5.module\u002Bel8.4.0\u002B574\u002B843c4898",
      "supported": true
    },
    {
      "product": "python39",
      "productUrl": "https://patchblox.com/security/product/linux/python39",
      "release": "rocky 8",
      "fixedVersion": "0:3.9.6-2.module\u002Bel8.5.0\u002B673\u002B10283621",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2021-3737",
      "url": "https://patchblox.com/security/cve/CVE-2021-3737",
      "title": "Python 3.8 and 2 others: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027), CWE-400 - Uncontrolled Resource Consumption",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.13166,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-29921",
      "url": "https://patchblox.com/security/cve/CVE-2021-29921",
      "title": "Python 3.8: In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an\u2026",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.8,
      "epss": 0.06761,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3733",
      "url": "https://patchblox.com/security/cve/CVE-2021-3733",
      "title": "Python 3.7 and 5 others: Uncontrolled Resource Consumption",
      "priority": "High",
      "severity": "moderate",
      "cvss": 9.1,
      "epss": 0.04799,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-28957",
      "url": "https://patchblox.com/security/cve/CVE-2021-28957",
      "title": "python39-rpm-macros: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, excepti...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.04035,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-33503",
      "url": "https://patchblox.com/security/cve/CVE-2021-33503",
      "title": "python39-wcwidth: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, excepti...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.03273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3426",
      "url": "https://patchblox.com/security/cve/CVE-2021-3426",
      "title": "Python 3.7 and 3 others: There\u0027s a flaw in Python 3\u0027s pydoc.",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.01863,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3572",
      "url": "https://patchblox.com/security/cve/CVE-2021-3572",
      "title": "python39-urllib3: Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, excepti...",
      "priority": "High",
      "severity": "Moderate",
      "cvss": 9.1,
      "epss": 0.01829,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}