{
  "cveId": "CVE-2020-21528",
  "url": "https://patchblox.com/security/cve/CVE-2020-21528",
  "summary": "CVE-2020-21528 is fixed in 6 products on 1 platform, first by DEBIAN-CVE-2020-21528, released August 22, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "nasm: A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote...",
  "description": "A Segmentation Fault issue discovered in in ieee_segment function in outieee.c in nasm 2.14.03 and 2.15 allows remote attackers to cause a denial of service via crafted assembly file.",
  "published": "2023-08-22T19:16:13Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
  "epss": 0.0054,
  "epssPercentile": 0.45641,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "nasm",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "2.16.01-1",
      "fix": "DEBIAN-CVE-2020-21528",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-21528",
      "released": "2023-08-22T19:16:13Z"
    },
    {
      "platform": "linux",
      "product": "nasm",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "2.16.01-1",
      "fix": "DEBIAN-CVE-2020-21528",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-21528",
      "released": "2023-08-22T19:16:13Z"
    },
    {
      "platform": "linux",
      "product": "nasm",
      "release": "Debian 14",
      "fixedVersion": "2.16.01-1",
      "fix": "DEBIAN-CVE-2020-21528",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2020-21528",
      "released": "2023-08-22T19:16:13Z"
    },
    {
      "platform": "linux",
      "product": "nasm",
      "release": "amzn 2023",
      "fixedVersion": "2.15.05-1.amzn2023.0.5",
      "fix": "ALAS2023-2023-354",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-354",
      "released": "2023-09-14T00:55:00Z"
    },
    {
      "platform": "linux",
      "product": "nasm-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.15.05-1.amzn2023.0.5",
      "fix": "ALAS2023-2023-354",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-354",
      "released": "2023-09-14T00:55:00Z"
    },
    {
      "platform": "linux",
      "product": "nasm-debugsource",
      "release": "amzn 2023",
      "fixedVersion": "2.15.05-1.amzn2023.0.5",
      "fix": "ALAS2023-2023-354",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-354",
      "released": "2023-09-14T00:55:00Z"
    },
    {
      "platform": "linux",
      "product": "nasm-doc",
      "release": "amzn 2023",
      "fixedVersion": "2.15.05-1.amzn2023.0.5",
      "fix": "ALAS2023-2023-354",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-354",
      "released": "2023-09-14T00:55:00Z"
    },
    {
      "platform": "linux",
      "product": "nasm-rdoff",
      "release": "amzn 2023",
      "fixedVersion": "2.15.05-1.amzn2023.0.5",
      "fix": "ALAS2023-2023-354",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-354",
      "released": "2023-09-14T00:55:00Z"
    },
    {
      "platform": "linux",
      "product": "nasm-rdoff-debuginfo",
      "release": "amzn 2023",
      "fixedVersion": "2.15.05-1.amzn2023.0.5",
      "fix": "ALAS2023-2023-354",
      "url": "https://patchblox.com/security/fix/linux/alas2023-2023-354",
      "released": "2023-09-14T00:55:00Z"
    }
  ],
  "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"
  }
}