Excessive Memory Allocation Vulnerability in Binaryen by WebAssembly
CVE-2019-7704

6.5MEDIUM

Key Information:

Vendor

Webassembly

Status
Binaryen
Vendor
CVE Published:
10 February 2019

What is CVE-2019-7704?

The excessive memory allocation vulnerability in Binaryen, specifically within the wasm-binary.cpp file, allows attackers to exploit the wasm::WasmBinaryBuilder::readUserSection function. This issue is exemplified by tools such as wasm-merge and wasm-opt, which can trigger an attempt to allocate more memory than permitted, potentially leading to denial of service or other adverse effects on system performance.

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References

https://github.com/WebAssembly/binaryen/issues/1866
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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