Out-of-bounds Read in Python Pillow
CVE-2020-35653
In Pillow before 8.1.0, PcxDecode has a buffer over-read when decoding a crafted PCX file because the user-supplied stride value is trusted for buffer calculations.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H.
EPSS exploit prediction
EPSS: 0.016 (75.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 75.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.016 · change: +0.001
Affected products
- Python Pillow
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 32, 33
Weakness classification (CWE)
References
- pillow.readthedocs.io/en/stable/releasenotes/index.html (Third Party Advisory, Release Notes)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.debian.org/debian-lts-announce/2021/07/msg00018.html (mailing-list, Mailing List)
Frequently asked questions
- What is CVE-2020-35653?
- CVE-2020-35653 is a high-severity vulnerability in Python Pillow, classified under Out-of-bounds Read. CVSS score: 7.1/10. Published 2021-01-12.
- How severe is CVE-2020-35653?
- High severity. CVSS v3 base score is 7.1 out of 10.