CVE-2020-18378 Null dereference in n/a
A crafted WebAssembly input triggers a null pointer dereference in Binaryen, causing a segmentation fault and denial of service.
- 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-2020-18378?
CVE-2020-18378 is a medium-severity vulnerability in n/a, published on 22 Aug 2023. 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 NULL pointer dereference was discovered in SExpressionWasmBuilder::makeBlock in wasm/wasm-s-parser.c in Binaryen 1.38.26. A crafted wasm input can cause a segmentation fault, leading to denial-of-service, as demonstrated by wasm-as.
Weakness: CWE-476
Which versions are affected by CVE-2020-18378?
It affects 1 product.
Products include Webassembly Binaryen.
How do I fix CVE-2020-18378?
Upgrade to a fixed version.
Is CVE-2020-18378 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2020-18378 exists.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2020-18378, GHSA-vj54-ff4j-gq2v, UBUNTU-CVE-2020-18378.