CVE-2020-18378

Public Exploit

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.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.22%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/WebAssembly/binaryen/issues/1900 third party advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2020-18378?
CVE-2020-18378 has been scored as a medium severity vulnerability.
How to fix CVE-2020-18378?
To fix CVE-2020-18378, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-18378 being actively exploited in the wild?
It is possible that CVE-2020-18378 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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