CVE-2019-7703: Use After Free
First published: Sun Feb 10 2019(Updated: )
In Binaryen 1.38.22, there is a use-after-free problem in wasm::WasmBinaryBuilder::visitCall in wasm-binary.cpp. Remote attackers could leverage this vulnerability to cause a denial-of-service via a wasm file, as demonstrated by wasm-merge.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Webassembly Binaryen | <64 | |
| <64 |
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Reference Links
Frequently Asked Questions
What is CVE-2019-7703?
CVE-2019-7703 is a use-after-free vulnerability in Binaryen 1.38.22.
How can this vulnerability impact me?
This vulnerability can be exploited by remote attackers to cause a denial-of-service by using a wasm file.
What is the affected software?
The affected software is Webassembly Binaryen version up to 64.
What is the severity rating of CVE-2019-7703?
The severity rating of CVE-2019-7703 is medium with a score of 6.5.
How can I fix CVE-2019-7703?
To fix CVE-2019-7703, it is recommended to update Binaryen to version 1.38.23 or later.
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