PT-2021-1715 · Oracle+6 · Mysql Server+5

Yaoguang Chen · Published 2020-11-13 · Updated 2022-01-04 · CVE-2021-2055

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: MySQL Server versions 8.0.21 and prior

Description: The issue is related to insufficient access control in the MySQL Server component, specifically the Server: Optimizer. This can be exploited by a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server, resulting in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of the server.

Recommendations: For MySQL Server versions 8.0.21 and prior, update to a version that contains a fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-264

Related Identifiers

ALSA-2021:3590

ALT-PU-2020-3284

ALT-PU-2021-2380

ALT-PU-2021-3668

BDU:2021-00405

CESA-2021_3590

CVE-2021-2055

OESA-2021-1088

RHSA-2021:3590

RHSA-2021:3811

RHSA-2021_3590

RLSA-2021:3590

Affected Products

Alt Linux

Almalinux

Centos

Mysql Server

Red Hat

Rocky Linux

References · 330

• 🔥 https://github.com/terorie/cve-2021-3449 · Exploit
• 🔥 https://github.com/riptl/cve-2021-3449 · Exploit
• 🔥 https://github.com/motikan2010/CVE-2020-5398 · Exploit
• 🔥 https://github.com/LeadroyaL/cve-2019-14540-exploit · Exploit
• 🔥 https://github.com/irsl/CVE-2020-1967 · Exploit
• 🔥 https://github.com/MBHudson/CVE-2020-1971 · Exploit
• https://oracle.com/security-alerts/cpujan2021.html · Vendor Advisory
• https://security.gentoo.org/glsa/202105-27 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:3590 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-3011 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-2016 · Security Note
• https://osv.dev/vulnerability/ALSA-2021:3590 · Vendor Advisory
• https://osv.dev/vulnerability/RLSA-2021:3590 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-2957 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2019-3018 · Security Note