NetSight
IP …
high7.1

CVE-2021-42716

An issue was discovered in stb stb_image.h 2.27.

Impact

An issue was discovered in stb stb_image.h 2.27. The PNM loader incorrectly interpreted 16-bit PGM files as 8-bit when converting to RGBA, leading to a buffer overflow when later reinterpreting the result as a 16-bit buffer. An attacker could potentially have crashed a service using stb_image, or read up to 1024 bytes of non-consecutive heap data without control over the read location.

Affected products

VendorProductAffected versions
NothingsStb Image.H
Version 2.27
FedoraprojectFedora
Versions 33, 34, 35

Weakness classification

CWE-120

References