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CVE-2023-28756

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Date: March 30, 2023

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.

Language: Ruby

Severity Score

Related Resources (17)

https://www.ruby-lang.org/en/news/2022/12/25/ruby-3-2-0-released/
https://www.ruby-lang.org/en/news/2023/03/30/redos-in-time-cve-2023-28756/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/
https://github.com/ruby/time/releases/
https://security.gentoo.org/glsa/202401-27
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/
https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FFZANOQA4RYX7XCB42OO3P24DQKWHEKA/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WMIOPLBAAM3FEQNAXA2L7BDKOGSVUT5Z/
https://www.ruby-lang.org/en/downloads/releases/
https://security-tracker.debian.org/tracker/CVE-2023-28756
https://nvd.nist.gov/vuln/detail/CVE-2023-28756
https://access.redhat.com/security/cve/CVE-2023-28756
https://security.netapp.com/advisory/ntap-20230526-0004/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G76GZG3RAGYF4P75YY7J7TGYAU7Z5E2T/
https://www.mend.io/vulnerability-database/CVE-2023-28756

Severity Score

Weakness Type (CWE)

Inefficient Regular Expression Complexity

CWE-1333

Top Fix

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Upgrade Version

Upgrade to version time - 0.1.1,0.2.2

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

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