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cfitsio — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2018-3846

In the ffgphd and ffgtkn functions in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.

Products
cfitsio
Affected versions
Not specified
Fixed versions
3.430-1
CVEs
CVE-2018-3846
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 01:33 UTC · Revision 1

Source evidence

DEBIAN-CVE-2018-3846

core-osv · Original source

Published 16 Apr 2018, 16:29 UTC

In the ffgphd and ffgtkn functions in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.

osv:DEBIAN-CVE-2018-3846

cfitsio

Fixed versions: 3.430-1

cfitsio

Fixed versions: 3.430-1

cfitsio

Fixed versions: 3.430-1

Complete source record
{
  "id": "d58abce49a73ce63974f17aaeab241c292a606e66521095cb48ffc20a03ae435",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2018-3846",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2018-3846",
    "summary": "In the ffgphd and ffgtkn functions in NASA CFITSIO 3.42, specially crafted images parsed via the library can cause a stack-based buffer overflow overwriting arbitrary data. An attacker can deliver an FIT image to trigger this vulnerability and potentially gain code execution.",
    "evidence": "osv:DEBIAN-CVE-2018-3846",
    "products": [
      {
        "name": {
          "value": "cfitsio",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.430-1",
            "evidence": "/affected/0/ranges"
          }
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        "affected_versions": []
      },
      {
        "name": {
          "value": "cfitsio",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.430-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "cfitsio",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
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            "evidence": "/affected/2/ranges"
          }
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    "severity": "high",
    "structured": {
      "id": "DEBIAN-CVE-2018-3846",
      "aliases": [
        "DEBIAN-CVE-2018-3846"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
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              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
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                {
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          ],
          "package": {
            "name": "cfitsio",
            "purl": "pkg:deb/debian/cfitsio?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-3846.json"
          },
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        {
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              ]
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          ],
          "package": {
            "name": "cfitsio",
            "purl": "pkg:deb/debian/cfitsio?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-3846.json"
          },
          "ecosystem_specific": {
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          ],
          "package": {
            "name": "cfitsio",
            "purl": "pkg:deb/debian/cfitsio?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2018-3846.json"
          },
          "ecosystem_specific": {
            "urgency": "low"
          }
        }
      ],
      "modified": "2026-10-23T18:04:47.726678486Z",
      "provider": "osv",
      "upstream": [
        "CVE-2018-3846"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2018-3846"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2018-3846",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 423798,
  "published_at": "2018-04-16T16:29:00.22+00:00"
}