CVE-2021-28021

stb: buffer overflow in stbi__extend_receive() in stb_image.h via a crafted JPEG file

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Severity

Moderate

Red Hat Product Security

6.1

CVSS 3.1

Review impact separately from score.

Published · March 4, 2021

Updated · June 27, 2026

Description

An out-of-bounds read flaw was found in stb. This flaw allows an attacker who can submit a specially crafted file to an application using stb's JPEG decoder to cause a denial of service or information disclosure, depending on how the application uses the vulnerable stb functionality. The highest threat from this vulnerability is to confidentiality and system availability.

Statement

This flaw does not affect the versions of cogl shipped with Red Hat Enterprise Linux 7 or 8 because the affected code is not shipped in those packages. This flaw is out of support scope for Red Hat Enterprise Linux 6.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

CWE-125 · Out-of-bounds Read