{
  "fix": "RHSA-2021:4122",
  "url": "https://patchblox.com/security/fix/linux/rhsa-2021-4122",
  "summary": "RHSA-2021:4122, released November 3, 2021, fixes 2 CVEs across 7 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 7 packages",
  "released": "2021-11-03T00:00:00Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2020-36385, high severity",
  "supported": true,
  "cveCount": 2,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01476,
  "maxCvss": 7.8,
  "vendorAdvisory": "https://access.redhat.com/errata/RHSA-2021:4122",
  "appliesTo": [
    {
      "product": "kpatch-patch-4_18_0-305",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305",
      "release": "RHEL 8",
      "fixedVersion": "0:1-6.el8",
      "supported": true
    },
    {
      "product": "kpatch-patch-4_18_0-305_10_2",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305-10-2",
      "release": "RHEL 8",
      "fixedVersion": "0:1-3.el8_4",
      "supported": true
    },
    {
      "product": "kpatch-patch-4_18_0-305_12_1",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305-12-1",
      "release": "RHEL 8",
      "fixedVersion": "0:1-2.el8_4",
      "supported": true
    },
    {
      "product": "kpatch-patch-4_18_0-305_17_1",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305-17-1",
      "release": "RHEL 8",
      "fixedVersion": "0:1-1.el8_4",
      "supported": true
    },
    {
      "product": "kpatch-patch-4_18_0-305_19_1",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305-19-1",
      "release": "RHEL 8",
      "fixedVersion": "0:1-1.el8_4",
      "supported": true
    },
    {
      "product": "kpatch-patch-4_18_0-305_3_1",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305-3-1",
      "release": "RHEL 8",
      "fixedVersion": "0:1-5.el8_4",
      "supported": true
    },
    {
      "product": "kpatch-patch-4_18_0-305_7_1",
      "productUrl": "https://patchblox.com/security/product/linux/kpatch-patch-4-18-0-305-7-1",
      "release": "RHEL 8",
      "fixedVersion": "0:1-4.el8_4",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2020-36385",
      "url": "https://patchblox.com/security/cve/CVE-2020-36385",
      "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: u...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01476,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-0512",
      "url": "https://patchblox.com/security/cve/CVE-2021-0512",
      "title": "kpatch-patch-4_18_0-305_19_1: This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00282,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T18:46:35Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}