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qemu — security advisory

Type: advisorySources: OSVAdvisory ID: DEBIAN-CVE-2007-5729

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

Products
qemu
Affected versions
Not specified
Fixed versions
0.9.0-2
CVEs
CVE-2007-5729
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 15:56 UTC · Revision 1

Source evidence

DEBIAN-CVE-2007-5729

core-osv · Original source

Published 30 Oct 2007, 22:46 UTC

The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 "mtu" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of "NE2000 network driver and the socket code," but this is the correct identifier for the mtu overflow vulnerability.

osv:DEBIAN-CVE-2007-5729

qemu

Fixed versions: 0.9.0-2

qemu

Fixed versions: 0.9.0-2

qemu

Fixed versions: 0.9.0-2

Complete source record
{
  "id": "13e59aeea42a034be4d652f6835f8101a20fb4835831bd80501edaf5124e083d",
  "url": "https://osv.dev/vulnerability/DEBIAN-CVE-2007-5729",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "DEBIAN-CVE-2007-5729",
    "summary": "The NE2000 emulator in QEMU 0.8.2 allows local users to execute arbitrary code by writing Ethernet frames with a size larger than the MTU to the EN0_TCNT register, which triggers a heap-based buffer overflow in the slirp library, aka NE2000 \"mtu\" heap overflow. NOTE: some sources have used CVE-2007-1321 to refer to this issue as part of \"NE2000 network driver and the socket code,\" but this is the correct identifier for the mtu overflow vulnerability.",
    "evidence": "osv:DEBIAN-CVE-2007-5729",
    "products": [
      {
        "name": {
          "value": "qemu",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.9.0-2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "qemu",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.9.0-2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "qemu",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "0.9.0-2",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "DEBIAN-CVE-2007-5729",
      "aliases": [
        "DEBIAN-CVE-2007-5729"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.9.0-2"
                }
              ]
            }
          ],
          "package": {
            "name": "qemu",
            "purl": "pkg:deb/debian/qemu?arch=source&distro=bookworm",
            "ecosystem": "Debian:12"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-5729.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.9.0-2"
                }
              ]
            }
          ],
          "package": {
            "name": "qemu",
            "purl": "pkg:deb/debian/qemu?arch=source&distro=trixie",
            "ecosystem": "Debian:13"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-5729.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "0.9.0-2"
                }
              ]
            }
          ],
          "package": {
            "name": "qemu",
            "purl": "pkg:deb/debian/qemu?arch=source&distro=forky",
            "ecosystem": "Debian:14"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2007-5729.json"
          },
          "ecosystem_specific": {
            "urgency": "not yet assigned"
          }
        }
      ],
      "modified": "2026-10-21T17:47:47.945628130Z",
      "provider": "osv",
      "upstream": [
        "CVE-2007-5729"
      ],
      "references": [
        "https://security-tracker.debian.org/tracker/CVE-2007-5729"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2007-5729",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 398665,
  "published_at": "2007-10-30T22:46:00+00:00"
}