Buffer overflow in Libpng Pngcheck
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.
EPSS: 0.003 (27.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Libpng Pngcheck — versions 2.4.0
- Debian Debian_linux — versions 10.0, 11.0
- N/a Pngcheck — versions pngcheck-2.4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory)
- secalert@redhat.com (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-35511?
- CVE-2020-35511 is a high-severity vulnerability in Libpng Pngcheck, classified under Buffer Over-read. CVSS score: 7.8/10. Published 2022-08-23.
- How severe is CVE-2020-35511?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-35511 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.