PT-2021-2890 · Oracle+8 · Mysql Server+7

Published 2021-04-20 · Updated 2021-12-31 · CVE-2021-2170

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 Oracle MySQL Server versions 8.0.23 and prior

Description The issue is related to insufficient input validation in the Server: Optimizer component of Oracle MySQL Server. 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 Oracle MySQL Server versions 8.0.23 and prior, update to a version later than 8.0.23 to resolve the issue. As a temporary workaround, consider restricting network access to the MySQL Server to minimize the risk of exploitation. Additionally, monitor the server for signs of a denial-of-service attack and be prepared to restart the service if necessary.

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:2021-02459

CESA-2021_3590

CVE-2021-2170

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 · 378

• 🔥 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-2021-2170 · Security Note
• 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://ubuntu.com/security/CVE-2021-2304 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UJVUTKKFQAWR7NURCQHQQ5JHTVYGEOYQ · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-3590.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-2169 · Security Note