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.

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

.