CVEvulnerability
CVE-2021-28677
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-06-02
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
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.
Affected configurations
• python pillow (< 8.2.0)
• fedoraproject fedora 33
References
- https://github.com/python-pillow/Pillow/pull/5377 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ lists.fedoraproject.org
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28677-fix-eps-dos-on-open Third Party Advisory
- https://security.gentoo.org/glsa/202107-33 Third Party Advisory
- https://github.com/python-pillow/Pillow/pull/5377 Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/07/msg00018.html Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQHA5HAIBOYI3R6HDWCLAGFTIQP767FL/ lists.fedoraproject.org
- https://pillow.readthedocs.io/en/stable/releasenotes/8.2.0.html#cve-2021-28677-fix-eps-dos-on-open Third Party Advisory
- https://security.gentoo.org/glsa/202107-33 Third Party Advisory