CVE-2021-4214

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

A heap overflow flaw was found in libpngs' pngimage.c program. This flaw allows an attacker with local network access to pass a specially crafted PNG file to the pngimage utility, causing an application to crash, leading to a denial of service.

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-120 CWE-787

Affected software

Vendor	Product	Versions
n/a	libpng	libpng v1.6

References

https://access.redhat.com/security/cve/CVE-2021-4214Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2043393Exploit, Issue Tracking, Third Party Advisory
https://github.com/glennrp/libpng/issues/302Exploit, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-4214Third Party Advisory
https://security.netapp.com/advisory/ntap-20221020-0001/Third Party Advisory
https://access.redhat.com/security/cve/CVE-2021-4214Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2043393Exploit, Issue Tracking, Third Party Advisory
https://github.com/glennrp/libpng/issues/302Exploit, Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-4214Third Party Advisory
https://security.netapp.com/advisory/ntap-20221020-0001/Third Party Advisory

Timeline

Published: Aug 24, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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