VULNERABILITY INTELLIGENCE

CVE-2021-33797

CVSS score9.8 CRITICAL

EPSS probability0.81%

CISA KEVNot currently listed

Published2023-04-17

Last modified2026-06-17

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

Description

Buffer-overflow in jsdtoa.c in Artifex MuJS in versions 1.0.1 to 1.1.1. An integer overflow happens when js_strtod() reads in floating point exponent, which leads to a buffer overflow in the pointer *d.

Weakness classification

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-190: Integer Overflow or Wraparound

Primary references

patrick@puiterwijk.org — Patch
patrick@puiterwijk.org — Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch
af854a3a-2127-422b-91ae-364da2661108 — Issue Tracking, Third Party Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Issue Tracking, Third Party Advisory