PT-2021-2895 · Oracle+8 · Mysql Server+7

Published 2021-04-20 · Updated 2024-10-20 · CVE-2021-2305

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 8.0.23 and prior

Description The issue is related to insufficient input validation in the MySQL Server product, specifically in the Server: DML component. This allows a high-privileged attacker with network access via multiple protocols to compromise the MySQL Server, resulting in the ability to cause a hang or frequently repeatable crash (complete DOS) of the server.

Recommendations For MySQL Server versions 8.0.23 and prior, update to a version later than 8.0.23 to mitigate the risk of exploitation. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation.

Exploit

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALSA-2021:3590

ALT-PU-2021-1686

ALT-PU-2021-2380

ALT-PU-2021-3668

BDU:2021-02464

CESA-2021_3590

CVE-2021-2305

OESA-2021-1199

RHSA-2021:3590

RHSA-2021:3811

RHSA-2021_3590

RLSA-2021:3590

USN-4952-1

Affected Products

Alt Linux

Almalinux

Centos

Linuxmint

Mysql Server

Red Hat

Rocky Linux

Ubuntu

References · 376

• 🔥 https://github.com/riptl/cve-2021-3449 · Exploit
• 🔥 https://github.com/terorie/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://ubuntu.com/security/CVE-2021-2171 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2208 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-2305 · Security Note
• https://errata.rockylinux.org/RLSA-2021:3590 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-2305 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-2304 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-3590.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2169 · Security Note
• https://ubuntu.com/security/CVE-2021-2230 · Vendor Advisory