{
  "fix": "RLSA-2023:5455",
  "url": "https://patchblox.com/security/fix/linux/rlsa-2023-5455",
  "summary": "RLSA-2023:5455, released October 6, 2023, fixes 4 CVEs in glibc (version 0:2.28-225.el8_8.6). One of them is being exploited (CVE-2023-4911); 1 on CISA KEV. Patch Radar priority: Patch now.",
  "platform": "linux",
  "type": "advisory",
  "title": "glibc security update",
  "released": "2023-10-06T22:57:06Z",
  "priority": "Patch now",
  "priorityTier": 1,
  "priorityReason": "Closes CVE-2023-4911, exploited (CISA KEV)",
  "supported": true,
  "cveCount": 4,
  "exploitedCveCount": 1,
  "kevCveCount": 1,
  "ransomwareCveCount": 0,
  "maxEpss": 0.63769,
  "maxCvss": 7.8,
  "vendorAdvisory": "https://errata.rockylinux.org/RLSA-2023:5455",
  "appliesTo": [
    {
      "product": "glibc",
      "productUrl": "https://patchblox.com/security/product/linux/glibc",
      "release": "rocky 8",
      "fixedVersion": "0:2.28-225.el8_8.6",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2023-4911",
      "url": "https://patchblox.com/security/cve/CVE-2023-4911",
      "title": "compat-libpthread-nonshared: The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math librar...",
      "priority": "Patch now",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.63769,
      "kev": true,
      "ransomware": false,
      "exploited": true,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4813",
      "url": "https://patchblox.com/security/cve/CVE-2023-4813",
      "title": "compat-libpthread-nonshared: The glibc packages provide the standard C libraries (libc), POSIX thread libraries (libpthread), standard math librar...",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01926,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4527",
      "url": "https://patchblox.com/security/cve/CVE-2023-4527",
      "title": "Glibc: stack read overflow in getaddrinfo in no-aaaa mode",
      "priority": "High",
      "severity": "Important",
      "cvss": 7.8,
      "epss": 0.01669,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    },
    {
      "cveId": "CVE-2023-4806",
      "url": "https://patchblox.com/security/cve/CVE-2023-4806",
      "title": "glibc-source: A flaw has been identified in glibc",
      "priority": "High",
      "severity": "Low",
      "cvss": 7.8,
      "epss": 0.01606,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-07T06:34:28Z"
}