CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCVE-2021-28677
High (7.5). EPSS 2.5% chance of exploitation in the next 30 days. Fixed in pillow 8.2.0.
An issue was discovered in Pillow before 8.2.0. For EPS data, the readline implementation used in EPSImageFile has to deal with any combination of \r and \n as line endings. It used an accidentally quadratic method of accumulating lines while looking for a line ending. A malicious EPS file could use this to perform a DoS of Pillow in the open phase, before an image was accepted for opening.
Severity
- EPSS
- 2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- python:pillow
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-q5hq-fp76-qmrc | PyPI | pillow | <8.2.0 | 8.2.0 |
| PYSEC-2021-93 | PyPI | pillow | <8.2.0 | 8.2.0 |
References
- https://github.com/python-pillow/Pillow/pull/5377
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28677-fix-eps-dos-on-open
- https://security.gentoo.org/glsa/202107-33