Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2021-31556
CVE-2021-31556:
NixOS vulnerability analysis and mitigation
Overview
An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. The vulnerability (CVE-2021-31556) involves MWOAuthConsumerSubmitControl.php not ensuring that the length of an RSA key will fit in a MySQL blob (NVD).
Technical details
The vulnerability has been assigned a CVSS v3.1 Base Score of 9.8 (CRITICAL) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. The issue is related to improper validation of specified quantity in input (CWE-1284) (NVD).
Impact
Due to the critical CVSS score and the nature of the vulnerability, successful exploitation could potentially lead to unauthorized access and manipulation of the OAuth system in MediaWiki installations. The vulnerability affects the integrity of RSA key storage in MySQL databases (NVD).
Mitigation and workarounds
The vulnerability has been patched in MediaWiki version 1.35.4. Users are advised to upgrade to this version or later. The fix is available through package updates for various distributions including Fedora 33, 34, and 35 (Fedora Update).
Additional resources
Source: This report was generated using AI
Related NixOS vulnerabilities:
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