Buffer overflow in Jerryscript

CVE-2021-41683

There is a stack-overflow at ecma-helpers.c:326 in ecma_get_lex_env_type in JerryScript 2.4.0

Vulnerability class: Buffer Overflow

EPSS: 0.007 (48.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Jerryscript — versions 2.4.0
N/a — versions n/a

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2021-41683?: CVE-2021-41683 is a high-severity vulnerability in Jerryscript, classified under Out-of-bounds Write. CVSS score: 7.8/10. Published 2022-06-20.
How severe is CVE-2021-41683?: High severity. CVSS v3 base score is 7.8 out of 10.