Null Pointer Dereference in Binaryen Software from WebAssembly
CVE-2020-18378

6.5MEDIUM

Key Information:

Vendor

Webassembly

Status
Binaryen
Vendor
CVE Published:
22 August 2023

What is CVE-2020-18378?

A NULL pointer dereference vulnerability was identified in the SExpressionWasmBuilder::makeBlock function in Binaryen 1.38.26. This flaw allows attackers to craft special wasm inputs that trigger a segmentation fault, which subsequently results in a denial-of-service condition. The vulnerability's impact has been demonstrated utilizing the wasm-as utility.

References

https://github.com/WebAssembly/binaryen/issues/1900

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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CVE-2020-18378 : Null Pointer Dereference in Binaryen Software from WebAssembly