Home/CVE/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 p
CVE

CVE-2020-27818

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 p

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.

LOW · CVSS 3.3 EPSS 0.00178
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-125Out-of-bounds Read
▤

Affected Products & Versions

4
libpng pngcheckall versions
fedoraproject extra packages for enterprise linuxall versions
fedoraproject fedoraall versions
debian linuxall versions
▣

Scoring & Timeline

3.3
LOW · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Dec 2020 · 01:15 AM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
⚑

Vendor Advisories

6
suse-csafopenSUSE-SU-2024:11176-1
usnUSN-6182-1
suse-csafopenSUSE-SU-2020:2227-1
suse-csafopenSUSE-SU-2020:2220-1
suse-csafopenSUSE-SU-2020:2198-1
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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
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