CVE-2023-28756

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.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.60%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory gentoo.org Vendor Advisory ruby-lang.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/ release notes
https://www.ruby-lang.org/en/downloads/releases/ release notes
https://github.com/ruby/time/releases/ release notes
https://www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/ vendor advisory
https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html third party advisory mailing list
https://security.netapp.com/advisory/ntap-20230526-0004/ third party advisory
https://security.gentoo.org/glsa/202401-27 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-28756?
CVE-2023-28756 has been scored as a medium severity vulnerability.
How to fix CVE-2023-28756?
To fix CVE-2023-28756, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-28756 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-28756 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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