Vulnerability in Pillow
CVE-2021-23437
The package pillow 5.2.0 and before 8.3.2 are vulnerable to Regular Expression Denial of Service (ReDoS) via the getrgb function.
EPSS: 0.002 (45.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- N/a Pillow — versions 0, unspecified
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443
- pillow.readthedocs.io/en/stable/releasenotes/8.3.2.html
- github.com/python-pillow/Pillow/commit/9e08eb8f78fdfd2f476e1b20b7cf38683754866b
- FEDORA-2021-9f020cf155 (vendor-advisory)
- FEDORA-2021-cbfaefb390 (vendor-advisory)
- GLSA-202211-10 (vendor-advisory)
- [debian-lts-announce] 20240322 [SECURITY] [DLA 3768-1] pillow security update (mailing-list)
Frequently asked questions
- What is CVE-2021-23437?
- CVE-2021-23437 is a high-severity vulnerability in Pillow. CVSS score: 7.5/10. Published 2021-09-03.
- How severe is CVE-2021-23437?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-23437 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.