{
  "fix": "RLSA-2023:1584",
  "url": "https://patchblox.com/security/fix/linux/rlsa-2023-1584",
  "summary": "RLSA-2023:1584, released April 26, 2023, fixes 4 CVEs in kernel-rt (version 0:4.18.0-425.19.2.rt7.230.el8_7). 2 of them are being exploited (CVE-2023-0386); 2 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "advisory",
  "title": "kernel-rt security update",
  "released": "2023-04-26T15:28:18Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-0386, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 2,
  "kevCveCount": 2,
  "ransomwareCveCount": 0,
  "maxEpss": 0.0788,
  "maxCvss": 7.8,
  "vendorAdvisory": "https://errata.rockylinux.org/RLSA-2023:1584",
  "appliesTo": [
    {
      "product": "kernel-rt",
      "productUrl": "https://patchblox.com/security/product/linux/kernel-rt",
      "release": "rocky 8",
      "fixedVersion": "0:4.18.0-425.19.2.rt7.230.el8_7",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-0386",
      "url": "https://patchblox.com/security/cve/CVE-2023-0386",
      "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: s...",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0788,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-0266",
      "url": "https://patchblox.com/security/cve/CVE-2023-0266",
      "title": "bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: s...",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.03702,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-4378",
      "url": "https://patchblox.com/security/cve/CVE-2022-4378",
      "title": "kernel-abi-stablelists: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: s...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.0044,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-4269",
      "url": "https://patchblox.com/security/cve/CVE-2022-4269",
      "title": "kernel-debug-devel: The kernel packages contain the Linux kernel, the core of any Linux operating system.\n\nSecurity Fix(es):\n\n* kernel: s...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.00201,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}