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libxfont — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2006-3740

Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted (1) CMap and (2) CIDFont font data with modified item counts in the (a) begincodespacerange, (b) cidrange, and (c) notdefrange sections.

Products
libxfont
Affected versions
Not specified
Fixed versions
1:1.2.2-1
CVEs
CVE-2006-3740
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 20:17 UTC · Revision 1

Source evidence

DEBIAN-CVE-2006-3740

core-osv · Original source

Published 13 Sept 2006, 01:07 UTC

Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted (1) CMap and (2) CIDFont font data with modified item counts in the (a) begincodespacerange, (b) cidrange, and (c) notdefrange sections.

osv:DEBIAN-CVE-2006-3740

libxfont

Fixed versions: 1:1.2.2-1

libxfont

Fixed versions: 1:1.2.2-1

libxfont

Fixed versions: 1:1.2.2-1

Complete source record
{
  "id": "aaee16e1a7b672f8848be4594b66687831abde90059f3887f157aafa0615846c",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2006-3740",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2006-3740",
    "summary": "Integer overflow in the scan_cidfont function in X.Org 6.8.2 and XFree86 X server allows local users to execute arbitrary code via crafted (1) CMap and (2) CIDFont font data with modified item counts in the (a) begincodespacerange, (b) cidrange, and (c) notdefrange sections.",
    "evidence": "osv:DEBIAN-CVE-2006-3740",
    "products": [
      {
        "name": {
          "value": "libxfont",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.2-1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libxfont",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.2-1",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "libxfont",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:1.2.2-1",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DEBIAN-CVE-2006-3740",
      "aliases": [
        "DEBIAN-CVE-2006-3740"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libxfont",
            "purl": "pkg:deb/debian/libxfont?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-3740.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libxfont",
            "purl": "pkg:deb/debian/libxfont?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-3740.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:1.2.2-1"
                }
              ]
            }
          ],
          "package": {
            "name": "libxfont",
            "purl": "pkg:deb/debian/libxfont?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2006-3740.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-22T23:47:30.052845214Z",
      "provider": "osv",
      "upstream": [
        "CVE-2006-3740"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2006-3740"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2006-3740",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 410702,
  "published_at": "2006-09-13T01:07:00+00:00"
}