CVE catalog

CVE-2021-45293

binaryen affected and fixed versions

[CVE catalog]

A Denial of Service vulnerability exists in Binaryen 103 due to an Invalid memory address dereference in wasm::WasmBinaryBuilder::visitLet.

Severity
Medium · CVSS 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Published
Source
[NVD] · [CVE record]
EPSS
0.80% · Oct 27, 2026

Projects and upstream resources

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Distribution / releasePackageVersionStatusSource
Debiantrixiebinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debiantrixiebinaryen120-4Fixed[CVE-2021-45293]
Debiansidbinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debiansidbinaryen131-2Fixed[CVE-2021-45293]
Debianforkybinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debianforkybinaryen131-2Fixed[CVE-2021-45293]
Debianbookwormbinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debianbookwormbinaryen108-1Fixed[CVE-2021-45293]

Showing 8 fix observations. All 13 observations, including unknown and conflicting reports, are available below.

Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debianbookwormbinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debianbookwormbinaryen108-1Fixed[CVE-2021-45293]
Debianforkybinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debianforkybinaryen131-2Fixed[CVE-2021-45293]
Debiansidbinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debiansidbinaryen131-2Fixed[CVE-2021-45293]
Debiantrixiebinaryen104-1FixedDistribution-reported fixed boundary[CVE-2021-45293]
Debiantrixiebinaryen120-4Fixed[CVE-2021-45293]
Ubuntu20.04binaryen89-1UnknownSource applicability is not established[UBUNTU-CVE-2021-45293]
Ubuntu20.04binaryen90-1UnknownSource applicability is not established[UBUNTU-CVE-2021-45293]
Ubuntu20.04binaryen91-1UnknownSource applicability is not established[UBUNTU-CVE-2021-45293]
Ubuntu22.04binaryen105-1UnknownSource applicability is not established[UBUNTU-CVE-2021-45293]
Ubuntu22.04binaryen99-3UnknownSource applicability is not established[UBUNTU-CVE-2021-45293]
Original provider fields
{
  "package_releases": [
    {
      "name": "binaryen",
      "status": "fixed",
      "release": "sid",
      "version": "131-2"
    },
    {
      "name": "binaryen",
      "status": "fixed",
      "release": "forky",
      "version": "131-2"
    },
    {
      "name": "binaryen",
      "status": "fixed",
      "release": "trixie",
      "version": "120-4"
    },
    {
      "name": "binaryen",
      "status": "fixed",
      "release": "bookworm",
      "version": "108-1"
    }
  ],
  "fixed_versions": [
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "sid",
      "urgency": "unimportant",
      "fixed_version": "104-1"
    },
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "unimportant",
      "fixed_version": "104-1"
    },
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "unimportant",
      "fixed_version": "104-1"
    },
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "unimportant",
      "fixed_version": "104-1"
    }
  ],
  "distribution_packages": [
    {
      "name": "binaryen",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "20.04",
      "versions": [
        "89-1",
        "90-1",
        "91-1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-45293",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-45293",
      "provider_updated_at": "2025-10-24T04:50:38Z",
      "applicability_unknown": true
    },
    {
      "name": "binaryen",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "22.04",
      "versions": [
        "99-3",
        "105-1"
      ],
      "ecosystem": "deb",
      "provider_url": "https://osv.dev/vulnerability/UBUNTU-CVE-2021-45293",
      "fixed_version": "",
      "provider_source": "pypi",
      "provider_record_id": "UBUNTU-CVE-2021-45293",
      "provider_updated_at": "2025-10-24T04:50:38Z",
      "applicability_unknown": true
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [binaryen]Unknown
    Details (2)

    • 108-1 · amd64 · bookworm

      Fixed · Fixed: 104-1

      dsa · binaryen · debian · bookworm; dsa · binaryen · debian · 12

    • 108-1 · arm64 · bookworm

      Fixed · Fixed: 104-1

      dsa · binaryen · debian · bookworm; dsa · binaryen · debian · 12

[Debian 13 (Trixie)]

  • [binaryen]Unknown
    Details (2)

    • 120-4 · amd64 · trixie

      Fixed · Fixed: 104-1

      dsa · binaryen · debian · 13

    • 120-4 · arm64 · trixie

      Fixed · Fixed: 104-1

      dsa · binaryen · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]