CVE-2021-42716

Description

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.

Weakness classification

• CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Primary references

• cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
• cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
• cve@mitre.org — Third Party Advisory
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org
• cve@mitre.org