python-pillow/pillow · Security
Regular Expression Denial of Service (ReDoS) in Pillow
- GHSA ID
- GHSA-9hx2-hgq2-2g4f
- CVE ID
- CVE-2021-25292
- Severity
- medium
- Published
- Updated
- CVSS
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS v3
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS v4
- 6.9 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Description
An issue was discovered in Pillow before 8.1.1. The PDF parser allows a regular expression DoS (ReDoS) attack via a crafted PDF file because of a catastrophic backtracking regex.
CWEs
- CWE-400 · Uncontrolled Resource Consumption
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-25292 ↗
- https://github.com/python-pillow/Pillow/commit/3bce145966374dd39ce58a6fc0083f8d1890719c ↗
- https://github.com/python-pillow/Pillow/commit/6207b44ab1ff4a91d8ddc7579619876d0bb191a4 ↗
- https://pillow.readthedocs.io/en/stable/releasenotes/8.1.1.html ↗
- https://security.gentoo.org/glsa/202107-33 ↗
- https://github.com/python-pillow/Pillow/commit/521dab94c7ab72b037bd9a83e9663401e0fd2cee ↗
- https://github.com/advisories/GHSA-9hx2-hgq2-2g4f ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/pillow/PYSEC-2021-38.yaml ↗