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CVE-2023-28756

Good to know:

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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 (26)

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