CVE-2020-27818

Name: CVE-2020-27818
Creator: NVD / NIST
Published: 2020-12-08T01:15:12.32+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 3.3/10EPSS 1.20%

Last modified Jun 17, 2026

CVE-2020-27818 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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.. EPSS estimates a 1.20% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

3.3/10

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

EPSS Probability

1.20%

64.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Libpng	Pngcheck	2.4.0
Fedoraproject	Extra Packages For Enterprise Linux	7.0
Fedoraproject	Extra Packages For Enterprise Linux	8.0
Fedoraproject	Fedora	31
Fedoraproject	Fedora	32
Fedoraproject	Fedora	33
Fedoraproject	Fedora	34
Debian	Debian Linux	9.0

References

https://bodhi.fedoraproject.org/updates/FEDORA-2020-04d5e1ce26Third Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-23432b7b72Third Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-27b168926aThird Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-4349e95c4fThird Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-339db397adThird Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6c93c61069Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1902011Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00043.htmlMailing List, Third Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-04d5e1ce26Third Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-23432b7b72Third Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-27b168926aThird Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-2020-4349e95c4fThird Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-339db397adThird Party Advisory
https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-6c93c61069Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1902011Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/05/msg00043.htmlMailing List, Third Party Advisory

Timeline

Published: Dec 8, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-27818?

How severe is CVE-2020-27818?

CVE-2020-27818 has a CVSS score of 3.3/10 (LOW severity). The EPSS model estimates a 1.20% probability of exploitation in the next 30 days.

How do I fix CVE-2020-27818?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-27818?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST