Denial-of-Service Vulnerability in Binaryen by WebAssembly
CVE-2019-7702

6.5MEDIUM

Key Information:

Vendor

Webassembly

Status
Binaryen
Vendor
CVE Published:
10 February 2019

What is CVE-2019-7702?

A NULL pointer dereference vulnerability was identified in the wasm::SExpressionWasmBuilder::parseExpression function within the wasm-s-parser.cpp file of Binaryen, specifically in version 1.38.22. This vulnerability allows an attacker to craft a specially designed WebAssembly input that triggers a segmentation fault in the application. As a result, it can lead to a denial-of-service condition, effectively disrupting the normal operation of the affected service. This issue highlights the necessity for careful handling of input parsing to ensure stability and reliability in WebAssembly implementations.

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References

https://github.com/WebAssembly/binaryen/issues/1867
x_refsource_MISC

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

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