CVE-2021-42863

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Published 12 May 2022Modified 17 Jun 2026CWE 120

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD.

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.

Affected packages and fixed versions

Source	Package	Fixed in
conan::GitLab Advisory Database Community	jerryscript	no fix listed

References

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Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.