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.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (27.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Libpng Pngcheck — versions 2.4.0
- Debian Linux — versions 10.0, 11.0
- Pngcheck — versions pngcheck-2.4.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.libpng.org/pub/png/apps/pngcheck.html (Third Party Advisory)
- www.debian.org/security/2022/dsa-5300 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2022/12/msg00024.html (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.