CVE-2019-7701 Memory corruption in n/a
A heap-based buffer over-read in Binaryen allows attackers to cause a denial of service via crafted WebAssembly input.
- 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-2019-7701?
CVE-2019-7701 is a medium-severity memory corruption 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
A heap-based buffer over-read was discovered in wasm::SExpressionParser::skipWhitespace() in wasm-s-parser.cpp in Binaryen 1.38.22. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm2js.
Weakness: CWE-125
Which versions are affected by CVE-2019-7701?
It affects 1 product.
Products include Webassembly Binaryen.
How do I fix CVE-2019-7701?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2019-7701 being exploited?
There is no known exploitation of CVE-2019-7701 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2019-7701, GHSA-w6m3-f6w3-3gw3.