Regular Expression Denial of Service (ReDoS)
CVE-2021-23437

7.5HIGH

Key Information:

Vendor

Python

Status
Pillow
Vendor
CVE Published:
3 September 2021

What is 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.

Affected Version(s)

Pillow 0

Pillow < 8.3.2

References

https://snyk.io/vuln/SNYK-PYTHON-PILLOW-1319443
https://pillow.readthedocs.io/en/stable/releasenotes/8.3....
https://github.com/python-pillow/Pillow/commit/9e08eb8f78...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Liyuan Chen
.