What’s Vulnerable › Vulnerabilities

CVE-2020-27818

• Severity: low (CVSS 3.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-12-08 · updated 2026-06-17
• Weakness: CWE-120

Description

A flaw was found in the check_chunk_name() function of pngcheck-2.4.0. An attacker able to pass a malicious file to be processed by pngcheck could cause a temporary denial of service, posing a low risk to application availability.

Affected products

• Debian Linux: 9.0
• Fedoraproject Extra Packages For Enterprise Linux: 7.0, 8.0
• Fedoraproject Fedora: 31, 32, 33, 34
• Libpng Pngcheck: 2.4.0

References

• https://bodhi.fedoraproject.org/updates/FEDORA-2020-04d5e1ce26
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-23432b7b72
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-27b168926a
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-4349e95c4f
• https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-339db397ad
• https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6c93c61069
• https://bugzilla.redhat.com/show_bug.cgi?id=1902011
• https://lists.debian.org/debian-lts-announce/2022/05/msg00043.html
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-04d5e1ce26
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-23432b7b72
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-27b168926a
• https://bodhi.fedoraproject.org/updates/FEDORA-2020-4349e95c4f

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