CVE-2021-42863

Public Exploit

Description

A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.42%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/jerryscript-project/jerryscript/issues/4793 exploit third party advisory patch
https://github.com/jerryscript-project/jerryscript/pull/4794 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-42863?
CVE-2021-42863 has been scored as a critical severity vulnerability.
How to fix CVE-2021-42863?
To fix CVE-2021-42863, 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-2021-42863 being actively exploited in the wild?
It is possible that CVE-2021-42863 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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