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AUSCERT Security Bulletin
ASB-2021.0074
Oracle MySQL Critical Patch Update
21 April 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: MySQL Cluster
MySQL Enterprise Monitor
MySQL Server
MySQL Workbench
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Root Compromise -- Remote/Unauthenticated
Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Modify Arbitrary Files -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-23841 CVE-2021-3450 CVE-2021-3449
CVE-2021-2308 CVE-2021-2307 CVE-2021-2305
CVE-2021-2304 CVE-2021-2301 CVE-2021-2300
CVE-2021-2299 CVE-2021-2298 CVE-2021-2293
CVE-2021-2278 CVE-2021-2232 CVE-2021-2230
CVE-2021-2226 CVE-2021-2217 CVE-2021-2215
CVE-2021-2213 CVE-2021-2212 CVE-2021-2208
CVE-2021-2203 CVE-2021-2202 CVE-2021-2201
CVE-2021-2196 CVE-2021-2194 CVE-2021-2193
CVE-2021-2180 CVE-2021-2179 CVE-2021-2178
CVE-2021-2174 CVE-2021-2172 CVE-2021-2171
CVE-2021-2170 CVE-2021-2169 CVE-2021-2166
CVE-2021-2164 CVE-2021-2162 CVE-2021-2160
CVE-2021-2154 CVE-2021-2146 CVE-2021-2144
CVE-2020-28196 CVE-2020-17530 CVE-2020-17527
CVE-2020-8277 CVE-2020-1971 CVE-2019-7317
Reference: ASB-2021.0065
ESB-2021.1278
ESB-2021.1120
ESB-2021.1106
ESB-2021.0092
OVERVIEW
Multiple vulnerabilities have been identified in :
o MySQL Cluster, versions 8.0.23 and prior
o MySQL Enterprise Monitor, versions 8.0.23 and prior
o MySQL Server, versions 5.7.33 and prior, 8.0.23 and prior
o MySQL Workbench, versions 8.0.23 and prior
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 49 new security patches for
Oracle MySQL. 10 of these vulnerabilities may be remotely exploitable
without authentication, i.e., may be exploited over a network without
requiring user credentials." [1]
CVE-2020-17530
9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTPS to compromise MySQL Enterprise Monitor.
Successful attacks of this vulnerability can result in takeover of
MySQL Enterprise Monitor.
Affects:
o MySQL Enterprise Monitor 8.0.23 and prior
CVE-2020-8277
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise MySQL Cluster.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Cluster.
Affects:
o MySQL Cluster 8.0.23 and prior
CVE-2020-17527
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise MySQL Enterprise
Monitor. Successful attacks of this vulnerability can result in
unauthorized access to critical data or complete access to all MySQL
Enterprise Monitor accessible data.
Affects:
o MySQL Enterprise Monitor 8.0.23 and prior
[WARNING] Found details of CVE vary depending upon products
CVE-2021-23841
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via HTTPS to compromise MySQL Enterprise Monitor.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Enterprise Monitor.
Affects:
o MySQL Enterprise Monitor 8.0.23 and prior
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2020-1971
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.32 and prior and 8.0.22
and prior. Easily exploitable vulnerability allows unauthenticated
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.32 and prior, 8.0.22 and prior
CVE-2021-3449
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows unauthenticated
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2020-28196
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-3450
7.4 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Supported versions that are affected are 8.0.23 and prior. Difficult
to exploit vulnerability allows unauthenticated attacker with network
access via MySQL Workbench to compromise MySQL Workbench. Successful
attacks of this vulnerability can result in unauthorized creation,
deletion or modification access to critical data or all MySQL
Workbench accessible data as well as unauthorized access to critical
data or complete access to all MySQL Workbench accessible data.
Affects:
o MySQL Workbench 8.0.23 and prior
CVE-2021-2144
7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Supported versions that are affected are 5.7.29 and prior and 8.0.19
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
takeover of MySQL Server.
Affects:
o MySQL Server 5.7.29 and prior, 8.0.19 and prior
CVE-2021-2172
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows low privileged attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of MySQL
Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2298
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows low privileged attacker with network
access via multiple protocols to compromise MySQL Server. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of MySQL
Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2178
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.32 and prior and 8.0.22
and prior. Easily exploitable vulnerability allows low privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.32 and prior, 8.0.22 and prior
CVE-2021-2202
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.32 and prior and 8.0.22
and prior. Easily exploitable vulnerability allows low privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.32 and prior, 8.0.22 and prior
CVE-2021-2307
6.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows unauthenticated
attacker with logon to the infrastructure where MySQL Server executes
to compromise MySQL Server. Successful attacks require human
interaction from a person other than the attacker. Successful attacks
of this vulnerability can result in unauthorized access to critical
data or complete access to all MySQL Server accessible data as well
as unauthorized update, insert or delete access to some of MySQL
Server accessible data.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2304
5.5 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server as well as unauthorized update, insert or delete
access to some of MySQL Server accessible data.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2019-7317
5.3 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Difficult
to exploit vulnerability allows unauthenticated attacker with network
access via MySQL Workbench to compromise MySQL Workbench. Successful
attacks require human interaction from a person other than the
attacker. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Workbench.
Affects:
o MySQL Workbench 8.0.23 and prior
CVE-2021-2180
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2194
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2154
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior
CVE-2021-2166
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2196
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2300
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2305
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2179
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2226
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized access to critical data or complete access to all MySQL
Server accessible data.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2160
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.30 and prior and 8.0.17
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.30 and prior, 8.0.17 and prior
CVE-2021-2164
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2169
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2170
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2193
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2203
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2212
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2213
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.22 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.22 and prior
CVE-2021-2278
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2299
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2230
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2146
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2201
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2208
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2215
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2217
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2293
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a hang or frequently repeatable crash (complete DOS)
of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2174
4.4 AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Difficult to exploit vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2171
4.4 AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Difficult to exploit vulnerability allows high privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a hang or frequently repeatable crash
(complete DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2162
4.3 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Supported versions that are affected are 5.7.33 and prior and 8.0.23
and prior. Easily exploitable vulnerability allows low privileged
attacker with network access via multiple protocols to compromise
MySQL Server. Successful attacks of this vulnerability can result in
unauthorized update, insert or delete access to some of MySQL Server
accessible data.
Affects:
o MySQL Server 5.7.33 and prior, 8.0.23 and prior
CVE-2021-2301
2.7 AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
read access to a subset of MySQL Server accessible data.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2308
2.7 AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
Supported versions that are affected are 8.0.23 and prior. Easily
exploitable vulnerability allows high privileged attacker with
network access via multiple protocols to compromise MySQL Server.
Successful attacks of this vulnerability can result in unauthorized
read access to a subset of MySQL Server accessible data.
Affects:
o MySQL Server 8.0.23 and prior
CVE-2021-2232
1.9 AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
Supported versions that are affected are 8.0.23 and prior. Difficult
to exploit vulnerability allows high privileged attacker with logon
to the infrastructure where MySQL Server executes to compromise MySQL
Server. Successful attacks of this vulnerability can result in
unauthorized ability to cause a partial denial of service (partial
DOS) of MySQL Server.
Affects:
o MySQL Server 8.0.23 and prior
MITIGATION
Oracle states:
"Due to the threat posed by a successful attack, Oracle strongly
recommends that customers apply CPU fixes as soon as possible. Until
you apply the CPU fixes, it may be possible to reduce the risk of
successful attack by blocking network protocols required by an
attack. For attacks that require certain privileges or access to
certain packages, removing the privileges or the ability to access
the packages from users that do not need the privileges may help
reduce the risk of successful attack. Both approaches may break
application functionality, so Oracle strongly recommends that
customers test changes on non-production systems. Neither approach
should be considered a long-term solution as neither corrects the
underlying problem." [1]
REFERENCES
[1] Oracle Critical Patch Update Advisory - April 2021
https://www.oracle.com/security-alerts/cpuapr2021.html
[2] Text Form of Oracle Critical Patch Update - April 2021 Risk
Matrices
https://www.oracle.com/security-alerts/cpuapr2021verbose.html
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