Vulnerability Description
A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to Time objects. The fixed versions are 0.1.1 and 0.2.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ruby-Lang | Ruby | <= 2.7.7 |
| Ruby-Lang | Time | 0.1.0 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 36 |
Related Weaknesses (CWE)
References
- https://github.com/ruby/time/releases/Release Notes
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202401-27
- https://security.netapp.com/advisory/ntap-20230526-0004/Third Party Advisory
- https://www.ruby-lang.org/en/downloads/releases/Release Notes
- https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/Release Notes
- https://www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756/Vendor Advisory
- https://github.com/ruby/time/releases/Release Notes
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00000.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2023-28756?
CVE-2023-28756 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A ReDoS issue was discovered in the Time component through 0.2.1 in Ruby through 3.2.1. The Time parser mishandles invalid URLs that have specific characters. It causes an increase in execution time f...
How severe is CVE-2023-28756?
CVE-2023-28756 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-28756?
Check the references section above for vendor advisories and patch information. Affected products include: Ruby-Lang Ruby, Ruby-Lang Time, Debian Debian Linux, Fedoraproject Fedora.