Bug 2339270 (CVE-2025-21521)

Summary:	CVE-2025-21521 mysql: MySQL Server: Denial of service in Thread Pooling component
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in MySQL Server (Thread Pooling component). This vulnerability allows a denial of service (DoS) via network access through multiple protocols by an unauthenticated attacker.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2319437
Bug Blocks:

Description OSIDB Bzimport 2025-01-21 21:05:13 UTC

Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Thread Pooling).  Supported versions that are affected are 8.0.39 and prior, 8.4.2 and prior and  9.0.1 and prior. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server.  Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 7.5 (Availability impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Comment 1 errata-xmlrpc 2025-02-19 10:27:57 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2025:1671 https://access.redhat.com/errata/RHSA-2025:1671

Comment 2 errata-xmlrpc 2025-02-19 11:04:08 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2025:1673 https://access.redhat.com/errata/RHSA-2025:1673

Comment 3 errata-xmlrpc 2025-02-24 04:34:49 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2025:1755 https://access.redhat.com/errata/RHSA-2025:1755

Comment 4 errata-xmlrpc 2025-02-24 04:52:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.4 Extended Update Support

Via RHSA-2025:1756 https://access.redhat.com/errata/RHSA-2025:1756

Comment 5 errata-xmlrpc 2025-02-24 06:20:37 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Extended Update Support

Via RHSA-2025:1757 https://access.redhat.com/errata/RHSA-2025:1757

Comment 6 errata-xmlrpc 2025-02-24 13:11:36 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2025:1766 https://access.redhat.com/errata/RHSA-2025:1766

Comment 7 errata-xmlrpc 2025-02-24 13:28:12 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Extended Update Support

Via RHSA-2025:1767 https://access.redhat.com/errata/RHSA-2025:1767

Comment 8 errata-xmlrpc 2025-03-17 06:01:56 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.4 Telecommunications Update Service

Via RHSA-2025:2882 https://access.redhat.com/errata/RHSA-2025:2882

Comment 9 errata-xmlrpc 2025-03-17 07:41:48 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2025:2883 https://access.redhat.com/errata/RHSA-2025:2883