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AUSCERT Security Bulletin
ASB-2020.0176
Multiple vulnerabilities in Oracle MySQL Products
21 October 2020
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Oracle MySQL Cluster
Oracle MySQL Enterprise Monitor
Oracle MySQL Server
Oracle MySQL Workbench
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Increased Privileges -- Remote/Unauthenticated
Modify Arbitrary Files -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-14893 CVE-2020-14891 CVE-2020-14888
CVE-2020-14878 CVE-2020-14873 CVE-2020-14870
CVE-2020-14869 CVE-2020-14868 CVE-2020-14867
CVE-2020-14866 CVE-2020-14861 CVE-2020-14860
CVE-2020-14853 CVE-2020-14852 CVE-2020-14848
CVE-2020-14846 CVE-2020-14845 CVE-2020-14844
CVE-2020-14839 CVE-2020-14838 CVE-2020-14837
CVE-2020-14836 CVE-2020-14830 CVE-2020-14829
CVE-2020-14828 CVE-2020-14827 CVE-2020-14821
CVE-2020-14814 CVE-2020-14812 CVE-2020-14809
CVE-2020-14804 CVE-2020-14800 CVE-2020-14799
CVE-2020-14794 CVE-2020-14793 CVE-2020-14791
CVE-2020-14790 CVE-2020-14789 CVE-2020-14786
CVE-2020-14785 CVE-2020-14777 CVE-2020-14776
CVE-2020-14775 CVE-2020-14773 CVE-2020-14771
CVE-2020-14769 CVE-2020-14765 CVE-2020-14760
CVE-2020-14672 CVE-2020-13935 CVE-2020-8174
CVE-2020-1967 CVE-2020-1730
Member content until: Friday, November 20 2020
Reference: ASB-2020.0170
ASB-2020.0132
ASB-2020.0104
ESB-2020.3485
ESB-2020.3148
OVERVIEW
Multiple vulnerabilities have been identified in :
o MySQL Cluster, versions 7.3.30 and prior, 7.4.29 and prior,
7.5.19 and prior, 7.6.15 and prior, 8.0.21 and prior
o MySQL Enterprise Monitor, versions 8.0.21 and prior
o MySQL Server, versions 5.6.49 and prior, 5.7.31 and prior,
8.0.21 and prior
o MySQL Workbench, versions 8.0.21 and prior
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 53 new security patches plus
additional third party patches noted below for Oracle MySQL. 4 of
these vulnerabilities may be remotely exploitable without
authentication, i.e., may be exploited over a network without
requiring user credentials." [1]
CVE-2020-8174
9.8 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Easily exploitable vulnerability allows unauthenticated attacker with
network access via multiple protocols to compromise MySQL Cluster.
Successful attacks of this vulnerability can result in takeover of
MySQL Cluster.
Affects:
o MySQL Cluster 7.3.30 and prior, 7.4.29 and prior, 7.5.19 and
prior, 7.6.15 and prior, 8.0.21 and prior
CVE-2020-14878
8.0 AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Easily exploitable vulnerability allows low privileged attacker with
access to the physical communication segment attached to the hardware
where the MySQL Server executes to compromise MySQL Server.
Successful attacks of this vulnerability can result in takeover of
MySQL Server.
Affects:
o MySQL Server 8.0.21 and prior
CVE-2020-13935
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-1967
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Easily exploitable vulnerability allows unauthenticated attacker with
network access via MySQL Workbench to compromise MySQL Workbench.
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 8.0.21 and prior
CVE-2020-14828
7.2 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
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 8.0.21 and prior
CVE-2020-14775
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 5.7.31 and prior, 8.0.21 and prior
CVE-2020-14765
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 5.6.49 and prior, 5.7.31 and prior, 8.0.21 and
prior
CVE-2020-14769
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 5.6.49 and prior, 5.7.31 and prior, 8.0.21 and
prior
CVE-2020-14830
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14836
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14846
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14800
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14827
6.5 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
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
access to critical data or complete access to all MySQL Server
accessible data.
Affects:
o MySQL Server 5.7.31 and prior, 8.0.21 and prior
CVE-2020-14760
5.5 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
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 5.7.31 and prior
CVE-2020-1730
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Easily exploitable vulnerability allows unauthenticated attacker with
network access via MySQL Workbench to compromise MySQL Workbench.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a partial denial of service (partial DOS) of MySQL
Workbench.
Affects:
o MySQL Workbench 8.0.21 and prior
CVE-2020-14776
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.7.31 and prior, 8.0.21 and prior
CVE-2020-14821
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14829
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14848
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14852
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14814
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14789
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.7.31 and prior, 8.0.21 and prior
CVE-2020-14804
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14812
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.6.49 and prior, 5.7.31 and prior, 8.0.21 and
prior
CVE-2020-14773
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14777
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14785
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14793
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.6.49 and prior, 5.7.31 and prior, 8.0.21 and
prior
CVE-2020-14794
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14809
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14837
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14839
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14845
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14861
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14866
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14868
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14888
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14891
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14893
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14786
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14790
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.7.31 and prior, 8.0.21 and prior
CVE-2020-14844
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14799
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.20 and prior
CVE-2020-14869
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.7.31 and prior, 8.0.21 and prior
CVE-2020-14672
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.6.49 and prior, 5.7.31 and prior, 8.0.21 and
prior
CVE-2020-14870
4.9 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14853
4.6 AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:L
Easily exploitable vulnerability allows low privileged attacker with
network access via multiple protocols to compromise MySQL Cluster.
Successful attacks require human interaction from a person other than
the attacker. Successful attacks of this vulnerability can result in
unauthorized update, insert or delete access to some of MySQL Cluster
accessible data and unauthorized ability to cause a partial denial of
service (partial DOS) of MySQL Cluster.
Affects:
o MySQL Cluster 8.0.21 and prior
CVE-2020-14867
4.4 AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
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 5.6.49 and prior, 5.7.31 and prior, 8.0.21 and
prior
CVE-2020-14873
4.4 AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
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 8.0.21 and prior
CVE-2020-14838
4.3 AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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
read access to a subset of MySQL Server accessible data.
Affects:
o MySQL Server 8.0.21 and prior
CVE-2020-14860
2.7 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
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
update, insert or delete access to some of MySQL Server accessible
data.
Affects:
o MySQL Server 8.0.21 and prior
CVE-2020-14791
2.2 AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
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 partial denial of service (partial
DOS) of MySQL Server.
Affects:
o MySQL Server 8.0.21 and prior
CVE-2020-14771
2.2 AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
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 partial denial of service (partial
DOS) of MySQL Server.
Affects:
o MySQL Server 5.7.31 and prior, 8.0.21 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 - October 2020
https://www.oracle.com/security-alerts/cpuoct2020.html
[2] Text Form of Oracle Critical Patch Update - October 2020 Risk
Matrices
https://www.oracle.com/security-alerts/cpuoct2020verbose.html
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
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