PT-2020-2553 · Oracle+8 · Mysql Server+7

Published 2020-02-14 · Updated 2022-01-04 · CVE-2020-2921

Positive Technologies (AI Summary)

CVSS v2.0

6.3

Medium

Base vector

AV:N/AC:M/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Oracle MySQL Server versions 8.0.19 and prior

Description The issue is related to the Server: Group Replication Plugin component and is caused by inadequate access control. It allows a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server. Successful attacks can result in the unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of the MySQL Server.

Recommendations For versions 8.0.19 and prior, update to a version that contains a fix for this issue. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation. Restrict access to the Group Replication Plugin component to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ALSA-2020:3732

ALT-PU-2020-1220

ALT-PU-2020-1827

ALT-PU-2020-1885

ALT-PU-2020-1904

BDU:2020-02581

CESA-2020_3732

CVE-2020-2921

RHSA-2020:3518

RHSA-2020:3732

RHSA-2020:3755

RHSA-2020:3757

RHSA-2020_3732

RLSA-2020:3732

USN-4350-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Mysql Server

Red Hat

Rocky Linux

Ubuntu

References · 257

• https://osv.dev/vulnerability/CVE-2020-2921 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2925 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2895 · Vendor Advisory
• https://security.gentoo.org/glsa/202105-27 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2759 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2812 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2898 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/77REFDB7DE4WNKQIRGZTF53RFBQOXQLC · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/TSVLI36TYRTPQGCS24VZQUXCUFOUW4VQ · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2892 · Vendor Advisory
• https://oracle.com/security-alerts/cpuapr2020.html · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02581 · Security Note
• https://ubuntu.com/security/CVE-2020-2763 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2921 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-2780 · Vendor Advisory