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AUSCERT Security Bulletin
ASB-2022.0088
Oracle Java SE Critical Patch Update
20 April 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Oracle GraalVM Enterprise Edition
Oracle Java SE
Operating System: UNIX variants (UNIX, Linux, OSX)
Windows
Resolution: Patch/Upgrade
CVE Names: CVE-2022-21496 CVE-2022-21476 CVE-2022-21449
CVE-2022-21443 CVE-2022-21434 CVE-2022-21426
CVE-2022-0778
Comment: CVSS (Max): 7.5 CVE-2022-21476 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVSS Source: NVD
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
OVERVIEW
Multiple vulnerabilities have been identified in :
o Oracle GraalVM Enterprise Edition, versions 20.3.5, 21.3.1,
22.0.0.2
o Oracle Java SE, versions 7u331, 8u321, 11.0.14, 17.0.2, 18
[1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 7 new security patches for
Oracle Java SE. All of these vulnerabilities may be remotely
exploitable without authentication, i.e., may be exploited over a
network without requiring user credentials." [1]
CVE-2022-0778
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Supported versions that are affected are Oracle GraalVM Enterprise
Edition: 20.3.5, 21.3.1 and 22.0.0.2. Easily exploitable
vulnerability allows unauthenticated attacker with network access via
HTTPS to compromise Oracle GraalVM Enterprise Edition. Successful
attacks of this vulnerability can result in unauthorized ability to
cause a hang or frequently repeatable crash (complete DOS) of Oracle
GraalVM Enterprise Edition.
Affects:
o Oracle GraalVM Enterprise Edition Oracle GraalVM Enterprise
Edition: 20.3.5, 21.3.1, 22.0.0.2
CVE-2022-21449
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Supported versions that are affected are Oracle Java SE: 7u331,
8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM Enterprise Edition:
20.3.5, 21.3.1 and 22.0.0.2. Easily exploitable vulnerability allows
unauthenticated attacker with network access via multiple protocols
to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition.
Successful attacks of this vulnerability can result in unauthorized
creation, deletion or modification access to critical data or all
Oracle Java SE, Oracle GraalVM Enterprise Edition accessible data.
Note : This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed
Java applets, that load and run untrusted code (e.g., code that comes
from the internet) and rely on the Java sandbox for security. This
vulnerability can also be exploited by using APIs in the specified
Component, e.g., through a web service which supplies data to the
APIs.
Affects:
o Oracle Java SE, Oracle GraalVM Enterprise Edition Oracle Java
SE: 7u331, 8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM
Enterprise Edition: 20.3.5, 21.3.1, 22.0.0.2
CVE-2022-21476
7.5 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Supported versions that are affected are Oracle Java SE: 7u331,
8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM Enterprise Edition:
20.3.5, 21.3.1 and 22.0.0.2. Easily exploitable vulnerability allows
unauthenticated attacker with network access via multiple protocols
to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition.
Successful attacks of this vulnerability can result in unauthorized
access to critical data or complete access to all Oracle Java SE,
Oracle GraalVM Enterprise Edition accessible data.
Note : This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed
Java applets, that load and run untrusted code (e.g., code that comes
from the internet) and rely on the Java sandbox for security. This
vulnerability can also be exploited by using APIs in the specified
Component, e.g., through a web service which supplies data to the
APIs.
Affects:
o Oracle Java SE, Oracle GraalVM Enterprise Edition Oracle Java
SE: 7u331, 8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM
Enterprise Edition: 20.3.5, 21.3.1, 22.0.0.2
CVE-2022-21426
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Supported versions that are affected are Oracle Java SE: 7u331,
8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM Enterprise Edition:
20.3.5, 21.3.1 and 22.0.0.2. Easily exploitable vulnerability allows
unauthenticated attacker with network access via multiple protocols
to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition.
Successful attacks of this vulnerability can result in unauthorized
ability to cause a partial denial of service (partial DOS) of Oracle
Java SE, Oracle GraalVM Enterprise Edition.
Note : This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed
Java applets, that load and run untrusted code (e.g., code that comes
from the internet) and rely on the Java sandbox for security. This
vulnerability can also be exploited by using APIs in the specified
Component, e.g., through a web service which supplies data to the
APIs.
Affects:
o Oracle Java SE, Oracle GraalVM Enterprise Edition Oracle Java
SE: 7u331, 8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM
Enterprise Edition: 20.3.5, 21.3.1, 22.0.0.2
CVE-2022-21496
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Supported versions that are affected are Oracle Java SE: 7u331,
8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM Enterprise Edition:
20.3.5, 21.3.1 and 22.0.0.2. Easily exploitable vulnerability allows
unauthenticated attacker with network access via multiple protocols
to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition.
Successful attacks of this vulnerability can result in unauthorized
update, insert or delete access to some of Oracle Java SE, Oracle
GraalVM Enterprise Edition accessible data.
Note : This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed
Java applets, that load and run untrusted code (e.g., code that comes
from the internet) and rely on the Java sandbox for security. This
vulnerability can also be exploited by using APIs in the specified
Component, e.g., through a web service which supplies data to the
APIs.
Affects:
o Oracle Java SE, Oracle GraalVM Enterprise Edition Oracle Java
SE: 7u331, 8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM
Enterprise Edition: 20.3.5, 21.3.1, 22.0.0.2
CVE-2022-21434
5.3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Supported versions that are affected are Oracle Java SE: 7u331,
8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM Enterprise Edition:
20.3.5, 21.3.1 and 22.0.0.2. Easily exploitable vulnerability allows
unauthenticated attacker with network access via multiple protocols
to compromise Oracle Java SE, Oracle GraalVM Enterprise Edition.
Successful attacks of this vulnerability can result in unauthorized
update, insert or delete access to some of Oracle Java SE, Oracle
GraalVM Enterprise Edition accessible data.
Note : This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed
Java applets, that load and run untrusted code (e.g., code that comes
from the internet) and rely on the Java sandbox for security. This
vulnerability can also be exploited by using APIs in the specified
Component, e.g., through a web service which supplies data to the
APIs.
Affects:
o Oracle Java SE, Oracle GraalVM Enterprise Edition Oracle Java
SE: 7u331, 8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM
Enterprise Edition: 20.3.5, 21.3.1, 22.0.0.2
CVE-2022-21443
3.7 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Supported versions that are affected are Oracle Java SE: 7u331,
8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM Enterprise Edition:
20.3.5, 21.3.1 and 22.0.0.2. Difficult to exploit vulnerability
allows unauthenticated attacker with network access via multiple
protocols to compromise Oracle Java SE, Oracle GraalVM Enterprise
Edition. Successful attacks of this vulnerability can result in
unauthorized ability to cause a partial denial of service (partial
DOS) of Oracle Java SE, Oracle GraalVM Enterprise Edition.
Note : This vulnerability applies to Java deployments, typically in
clients running sandboxed Java Web Start applications or sandboxed
Java applets, that load and run untrusted code (e.g., code that comes
from the internet) and rely on the Java sandbox for security. This
vulnerability can also be exploited by using APIs in the specified
Component, e.g., through a web service which supplies data to the
APIs.
Affects:
o Oracle Java SE, Oracle GraalVM Enterprise Edition Oracle Java
SE: 7u331, 8u321, 11.0.14, 17.0.2, 18; Oracle GraalVM
Enterprise Edition: 20.3.5, 21.3.1, 22.0.0.2
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 2022
https://www.oracle.com/security-alerts/cpuapr2022.html
[2] Text Form of Oracle Critical Patch Update - April 2022 Risk
Matrices
https://www.oracle.com/security-alerts/cpuapr2022verbose.html
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in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
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the responsibility of each user or organisation, and should be considered in
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takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
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Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
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