Heap Buffer Overflow in JPEG-XL v0.3.2: Arbitrary Code Execution and Denial of Service Vulnerability

CVE-2021-28026 · HIGH Severity

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

jpeg-xl v0.3.2 is affected by a heap buffer overflow in /lib/jxl/coeff_order.cc ReadPermutation. When decoding a malicous jxl file using djxl, an attacker can trigger arbitrary code execution or a denial of service.

Learn more about our Web Application Penetration Testing UK.