{
  "fix": "ALAS2023-2023-438",
  "url": "https://patchblox.com/security/fix/linux/alas2023-2023-438",
  "summary": "ALAS2023-2023-438, released November 9, 2023, fixes 1 CVE across 3 products. None of them is reported as exploited. Patch Radar priority: Urgent.",
  "platform": "linux",
  "type": "advisory",
  "title": "Security update for 3 packages",
  "released": "2023-11-09T21:29:00Z",
  "priority": "Urgent",
  "priorityTier": 2,
  "priorityReason": "Closes CVE-2022-23901, rated Critical",
  "supported": true,
  "cveCount": 1,
  "exploitedCveCount": 0,
  "kevCveCount": 0,
  "ransomwareCveCount": 0,
  "maxEpss": 0.01588,
  "maxCvss": 9.8,
  "vendorAdvisory": "https://alas.aws.amazon.com/AL2023/ALAS-2023-438.html",
  "appliesTo": [
    {
      "product": "re2c",
      "productUrl": "https://patchblox.com/security/product/linux/re2c",
      "release": "amzn 2023",
      "fixedVersion": "3.1-1.amzn2023.0.1",
      "supported": true
    },
    {
      "product": "re2c-debuginfo",
      "productUrl": "https://patchblox.com/security/product/linux/re2c-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "3.1-1.amzn2023.0.1",
      "supported": true
    },
    {
      "product": "re2c-debugsource",
      "productUrl": "https://patchblox.com/security/product/linux/re2c-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "3.1-1.amzn2023.0.1",
      "supported": true
    }
  ],
  "cves": [
    {
      "cveId": "CVE-2022-23901",
      "url": "https://patchblox.com/security/cve/CVE-2022-23901",
      "title": "re2c: A stack overflow re2c 2.2 exists due to infinite recursion issues in src/dfa/dead_rules.cc.",
      "priority": "Urgent",
      "severity": "critical",
      "cvss": 9.8,
      "epss": 0.01588,
      "kev": false,
      "ransomware": false,
      "exploited": false,
      "disclosed": false
    }
  ],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}