What’s Vulnerable › Vulnerabilities

CVE-2021-4214

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-08-24 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• Debian Linux: 10.0, 11.0
• pnggroup libpng: 1.6.0
• NetApp ONTAP Select Deploy administration utility: all versions

References

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

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