CVE-2019-7704 Denial of service in n/a
An attacker can cause a denial of service by triggering excessive memory allocation in the Binaryen library during WebAssembly binary processing.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-7704?
CVE-2019-7704 is a medium-severity denial of service vulnerability in n/a, published on 10 Feb 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
wasm::WasmBinaryBuilder::readUserSection in wasm-binary.cpp in Binaryen 1.38.22 triggers an attempt at excessive memory allocation, as demonstrated by wasm-merge and wasm-opt.
Weakness: CWE-770
Which versions are affected by CVE-2019-7704?
It affects 1 product.
Products include Webassembly Binaryen.
How do I fix CVE-2019-7704?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-7704 being exploited?
There is no known exploitation of CVE-2019-7704 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-7704, GHSA-7fwv-6gmp-m9x7.