Home/CVE/A global buffer overflow was discovered in pngcheck function in pngcheck-2.4.0(5 patches applied) via a crafted png file
CVE

CVE-2020-35511

A global buffer overflow was discovered in pngcheck function in pngcheck-2.4.0(5 patches applied) via a crafted png file

A global buffer overflow was discovered in pngcheck function in pngcheck-2.4.0(5 patches applied) via a crafted png file.

HIGH · CVSS 7.8 EPSS 0.00066
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-126Buffer Over-read
▤

Affected Products & Versions

2
libpng pngcheckall versions
debian linuxall versions
▣

Scoring & Timeline

7.8
HIGH · 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 NVD23 Aug 2022 · 08:15 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
usnUSN-6182-1
suse-csafopenSUSE-SU-2022:10142-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.libpng.org/pub/png/apps/pngcheck.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/12/msg00024.htmlMailing ListThird Party Advisory
https://www.debian.org/security/2022/dsa-5300Third Party Advisory
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