Vulnerability Description
The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Python | Pillow | >= 5.2.0, < 8.3.2 |
| Fedoraproject | Fedora | 33 |
Related Weaknesses (CWE)
References
- https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.htmlRelease NotesVendor Advisory
- https://security.gentoo.org/glsa/202211-10Third Party Advisory
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443ExploitPatchRelease Notes
- https://github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/03/msg00021.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://pillow.readthedocs.io/en/stable/releasenotes/8.3.2.htmlRelease NotesVendor Advisory
- https://security.gentoo.org/glsa/202211-10Third Party Advisory
- https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443ExploitPatchRelease Notes
FAQ
What is CVE-2021-23437?
CVE-2021-23437 is a vulnerability with a CVSS score of 7.5 (HIGH). The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
How severe is CVE-2021-23437?
CVE-2021-23437 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-23437?
Check the references section above for vendor advisories and patch information. Affected products include: Python Pillow, Fedoraproject Fedora.