PT-2021-6818 · Oracle+6 · Mysql Server+5

Yaoguang Chen · Published 2021-04-21 · Updated 2021-12-31 · CVE-2021-2444

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 8.0.23 and prior

Description The issue is related to errors in resource release in the MySQL Server: Optimizer component. It allows a remote attacker to cause a denial of service. Successful attacks can result in the ability to cause a hang or frequently repeatable crash of the MySQL Server.

Recommendations For versions 8.0.23 and prior, update to a version that contains a 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

Improper Resource Release

Weakness Enumeration

CWE-404

Related Identifiers

ALSA-2021:3590

ALT-PU-2021-1686

ALT-PU-2021-2380

ALT-PU-2021-2461

ALT-PU-2021-2477

ALT-PU-2021-2571

ALT-PU-2021-3668

BDU:2022-02243

CESA-2021_3590

CVE-2021-2444

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 · 304

• 🔥 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://osv.dev/vulnerability/UBUNTU-CVE-2021-2444 · Vendor Advisory
• https://errata.rockylinux.org/RLSA-2021:3590 · Vendor Advisory
• https://oracle.com/security-alerts/cpujul2021.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-2444 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2444 · Security Note
• https://errata.almalinux.org/8/ALSA-2021-3590.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-2444 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-02243 · Security Note
• https://linux.oracle.com/errata/ELSA-2021-3590.html · Vendor Advisory