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.
Published: 2021-10-21
Score: 7.1 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2021-29676 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.
History

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Subscriptions

Fedoraproject Fedora
Nothings Stb Image.h
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-04T03:38:49.348Z

Reserved: 2021-10-19T00:00:00.000Z

Link: CVE-2021-42716

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-10-21T19:15:08.083

Modified: 2024-11-21T06:28:01.797

Link: CVE-2021-42716

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-07-14T00:00:00Z

Links: CVE-2021-42716 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses