PT-2021-6822 · Mysql Server+7 · Mysql Server+7

Published 2021-07-20 · Updated 2021-12-31 · CVE-2021-2427

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions MySQL Server versions 8.0.25 and prior

Description The issue is related to insufficient input validation in the MySQL Server component, specifically in the Optimizer subsystem. This allows a remote attacker to cause a denial of service. Successful exploitation can result in the ability to cause a hang or frequently repeatable crash of the MySQL Server, leading to a complete denial of service.

Recommendations For versions 8.0.25 and prior, update to a version that includes the fix for this issue to prevent exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALSA-2021:3590

ALT-PU-2021-2461

ALT-PU-2021-2477

ALT-PU-2021-2571

ALT-PU-2021-3668

BDU:2022-02247

CESA-2021_3590

CVE-2021-2427

OESA-2021-1375

RHSA-2021:3590

RHSA-2021:3811

RHSA-2021_3590

RLSA-2021:3590

USN-5022-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Mysql Server

Red Hat

Rocky Linux

Ubuntu

References · 358

• 🔥 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://nvd.nist.gov/vuln/detail/CVE-2021-2427 · Security Note
• https://ubuntu.com/security/CVE-2021-2389 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:3590 · Vendor Advisory
• https://oracle.com/security-alerts/cpujul2021.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2370 · Security Note
• https://ubuntu.com/security/CVE-2021-2402 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02247 · Security Note
• https://ubuntu.com/security/CVE-2021-2340 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-2422 · Vendor Advisory