Bug 1922387 (CVE-2021-2020)

Summary: CVE-2021-2020 mysql: Server: Optimizer unspecified vulnerability (CPU Jan 2021)
Product: [Other] Security Response Reporter: msiddiqu
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: damien.ciabrini, databases-maint, dbecker, dciabrin, hhorak, jjoyce, jorton, jschluet, lhh, ljavorsk, lpeer, mbayer, mburns, mkocka, mmuzila, mschorm, sclewis, slinaber, SpikeFedora
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: mysql 8.0.21 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-02-11 22:10:10 UTC 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: 1867720, 1867721, 1867729, 1867730, 1867731, 1867732, 1922446, 1922447    
Bug Blocks: 1922432    

Description msiddiqu 2021-01-29 16:47:35 UTC 
Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Optimizer). Supported versions that are affected are 8.0.20 and prior. Easily exploitable vulnerability allows low privileged 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.

External References:

https://www.oracle.com/security-alerts/cpujan2021.html#AppendixMSQL
Comment 1 msiddiqu 2021-01-29 19:30:03 UTC 
Created mysql:8.0/community-mysql tracking bugs for this issue:

Affects: fedora-all [bug 1922447]
Comment 2 msiddiqu 2021-01-29 19:46:34 UTC 
Created community-mysql tracking bugs for this issue:

Affects: fedora-all [bug 1922446]
Comment 3 Tomas Hoger 2021-02-11 21:42:21 UTC 
The Oracle advisory states that this issue was fixed upstream in version 8.0.21.  The mysql packages as shipped in Red Hat products were previously updated to a version that contains the fix via the following errata:

rh-mysql80-mysql in Red Hat Software Collections
https://access.redhat.com/errata/RHSA-2020:3518

mysql:8.0 module in Red Hat Enterprise Linux 8
https://access.redhat.com/errata/RHSA-2020:3732

mysql:8.0 module in Red Hat Enterprise Linux 8.1 Extended Update Support
https://access.redhat.com/errata/RHSA-2020:3757

mysql:8.0 module in Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions
https://access.redhat.com/errata/RHSA-2020:3755
Comment 4 Product Security DevOps Team 2021-02-11 22:10:10 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2021-2020