{
  "cveId": "CVE-2023-4156",
  "url": "https://patchblox.com/security/cve/CVE-2023-4156",
  "summary": "CVE-2023-4156 is fixed in 6 products on 1 platform, first by gawk 1:4.1.4\u002Bdfsg-1ubuntu0.1~esm1, released August 7, 2023. It is not reported as exploited. Patch Radar priority: High.",
  "title": "gawk: A heap out-of-bounds read flaw was found in builtin.c in the gawk package",
  "description": "A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.",
  "published": "2023-08-07T17:00:00Z",
  "severity": "high",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H",
  "epss": 0.00415,
  "epssPercentile": 0.36087,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "gawk",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:5.2.1-1",
      "fix": "DEBIAN-CVE-2023-4156",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-4156",
      "released": "2023-09-25T18:15:11Z"
    },
    {
      "platform": "linux",
      "product": "gawk",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:5.2.1-1",
      "fix": "DEBIAN-CVE-2023-4156",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-4156",
      "released": "2023-09-25T18:15:11Z"
    },
    {
      "platform": "linux",
      "product": "gawk",
      "release": "Debian 14",
      "fixedVersion": "1:5.2.1-1",
      "fix": "DEBIAN-CVE-2023-4156",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2023-4156",
      "released": "2023-09-25T18:15:11Z"
    },
    {
      "platform": "linux",
      "product": "gawk",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:4.1.4\u002Bdfsg-1ubuntu0.1~esm1",
      "fix": "gawk 1:4.1.4\u002Bdfsg-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-gawk-1-4.1.4-dfsg-1ubuntu0.1-esm1",
      "released": "2023-08-07T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:5.0.1\u002Bdfsg-1ubuntu0.1",
      "fix": "gawk 1:5.0.1\u002Bdfsg-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-gawk-1-5.0.1-dfsg-1ubuntu0.1",
      "released": "2023-08-07T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1:5.1.0-1ubuntu0.1",
      "fix": "gawk 1:5.1.0-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-gawk-1-5.1.0-1ubuntu0.1",
      "released": "2023-08-07T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk",
      "release": "amzn 2023",
      "fixedVersion": "5.1.0-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-292",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-292",
      "released": "2023-08-17T11:19:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk-all-langpacks",
      "release": "amzn 2023",
      "fixedVersion": "5.1.0-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-292",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-292",
      "released": "2023-08-17T11:19:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "5.1.0-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-292",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-292",
      "released": "2023-08-17T11:19:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "5.1.0-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-292",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-292",
      "released": "2023-08-17T11:19:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk-devel",
      "release": "amzn 2023",
      "fixedVersion": "5.1.0-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-292",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-292",
      "released": "2023-08-17T11:19:00Z"
    },
    {
      "platform": "linux",
      "product": "gawk-doc",
      "release": "amzn 2023",
      "fixedVersion": "5.1.0-3.amzn2023.0.3",
      "fix": "ALAS2023-2023-292",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-292",
      "released": "2023-08-17T11:19:00Z"
    }
  ],
  "noFixYet": [],
  "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"
  }
}