CVE catalog

CVE-2020-18378

binaryen affected and fixed versions

[CVE catalog]

A NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.

Severity
Medium
Published
Source
[NVD] · [CVE record]
EPSS
0.61% · 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
Debiantrixiebinaryen120-4Fixed[CVE-2020-18378]
Debiantrixiebinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Debiansidbinaryen131-2Fixed[CVE-2020-18378]
Debiansidbinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Debianforkybinaryen131-2Fixed[CVE-2020-18378]
Debianforkybinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Debianbookwormbinaryen108-1Fixed[CVE-2020-18378]
Debianbookwormbinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Provider details and historical evidence
Distribution / releasePackageVersionStatusSource
Debianbookwormbinaryen108-1Fixed[CVE-2020-18378]
Debianbookwormbinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Debianforkybinaryen131-2Fixed[CVE-2020-18378]
Debianforkybinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Debiansidbinaryen131-2Fixed[CVE-2020-18378]
Debiansidbinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
Debiantrixiebinaryen120-4Fixed[CVE-2020-18378]
Debiantrixiebinaryen68-1FixedDistribution-reported fixed boundary[CVE-2020-18378]
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": "not yet assigned",
      "fixed_version": "68-1"
    },
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "forky",
      "urgency": "not yet assigned",
      "fixed_version": "68-1"
    },
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "trixie",
      "urgency": "not yet assigned",
      "fixed_version": "68-1"
    },
    {
      "bug": null,
      "name": "binaryen",
      "type": "source",
      "origin": null,
      "release": "bookworm",
      "urgency": "not yet assigned",
      "fixed_version": "68-1"
    }
  ],
  "distribution_packages": []
}

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: 68-1

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

    • 108-1 · arm64 · bookworm

      Fixed · Fixed: 68-1

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

[Debian 13 (Trixie)]

  • [binaryen]Unknown
    Details (2)

    • 120-4 · amd64 · trixie

      Fixed · Fixed: 68-1

      dsa · binaryen · debian · 13

    • 120-4 · arm64 · trixie

      Fixed · Fixed: 68-1

      dsa · binaryen · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]