{
  "fix": "RLSA-2022:5099",
  "url": "https://patchblox.com/security/fix/linux/rlsa-2022-5099",
  "summary": "RLSA-2022:5099, released June 16, 2022, fixes 8 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 2 packages",
  "released": "2022-06-16T13:17:13Z",
  "priority": "High",
  "priorityTier": 3,
  "priorityReason": "Closes CVE-2022-28733, high severity",
  "supported": true,
  "cveCount": 8,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01273,
  "maxCvss": 8.1,
  "vendorAdvisory": "https://errata.rockylinux.org/RLSA-2022:5099",
  "appliesTo": [
    {
      "product": "mokutil",
      "productUrl": "https://patchblox.com/security/product/linux/mokutil",
      "release": "rocky 9",
      "fixedVersion": "2:0.4.0-8.el9_0.1",
      "supported": true
    },
    {
      "product": "shim",
      "productUrl": "https://patchblox.com/security/product/linux/shim",
      "release": "rocky 9",
      "fixedVersion": "0:15.6-1.el9",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2022-28733",
      "url": "https://patchblox.com/security/cve/CVE-2022-28733",
      "title": "grub-efi-amd64: Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in gru...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.1,
      "epss": 0.01273,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28734",
      "url": "https://patchblox.com/security/cve/CVE-2022-28734",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.01121,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3696",
      "url": "https://patchblox.com/security/cve/CVE-2021-3696",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.00484,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3695",
      "url": "https://patchblox.com/security/cve/CVE-2021-3695",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.00475,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2021-3697",
      "url": "https://patchblox.com/security/cve/CVE-2021-3697",
      "title": "grub2-common: The grub2 packages provide version 2 of the Grand Unified Boot Loader (GRUB), a highly configurable and customizable...",
      "priority": "High",
      "severity": "Important",
      "cvss": 8.1,
      "epss": 0.00469,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28737",
      "url": "https://patchblox.com/security/cve/CVE-2022-28737",
      "title": "shim: There\u0027s a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.1,
      "epss": 0.00328,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28735",
      "url": "https://patchblox.com/security/cve/CVE-2022-28735",
      "title": "grub-efi-arm64: The GRUB2\u0027s shim_lock verifier allows non-kernel files to be loaded on shim-powered secure boot systems",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.1,
      "epss": 0.00313,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2022-28736",
      "url": "https://patchblox.com/security/cve/CVE-2022-28736",
      "title": "grub-efi-arm64: There\u0027s a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up...",
      "priority": "High",
      "severity": "Medium",
      "cvss": 8.1,
      "epss": 0.00286,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}