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AUSCERT Security Bulletin
ASB-2019.0290
Multiple vulnerabilities have been identified in Oracle GraalVM
16 October 2019
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AusCERT Security Bulletin Summary
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Product: Oracle GraalVM
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Modify Arbitrary Files -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-9511 CVE-2019-2989 CVE-2019-2986
Member content until: Friday, November 15 2019
Reference: ASB-2019.0238
ESB-2019.3845
ESB-2019.3782
ESB-2019.3748
OVERVIEW
Multiple vulnerabilities have been identified in :
o Oracle GraalVM Enterprise Edition, version 19.2.0 [1]
IMPACT
The vendor has provided the following information regarding the
vulnerabilities:
"This Critical Patch Update contains 3 new security patches for
Oracle GraalVM. 2 of these vulnerabilities may be remotely
exploitable without authentication, i.e., may be exploited over a
network without requiring user credentials." [1]
"CVE-2019-2986
7.7 AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Easily exploitable vulnerability allows low privileged attacker with
network access via multiple protocols to compromise Oracle GraalVM
Enterprise Edition. While the vulnerability is in Oracle GraalVM
Enterprise Edition, attacks may significantly impact additional
products. 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 19.2.0
CVE-2019-9511
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 multiple protocols 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 19.2.0
CVE-2019-2989
6.8 AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Difficult to exploit vulnerability allows unauthenticated attacker
with network access via multiple protocols to compromise Oracle
GraalVM Enterprise Edition. While the vulnerability is in Oracle
GraalVM Enterprise Edition, attacks may significantly impact
additional products. Successful attacks of this vulnerability can
result in unauthorized creation, deletion or modification access to
critical data or all Oracle GraalVM Enterprise Edition accessible
data.
Affects:
o Oracle GraalVM Enterprise Edition 19.2.0" [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 - October 2019
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
[2] Text Form of Oracle Critical Patch Update - October 2019 Risk
Matrices
https://www.oracle.com/technetwork/security-advisory/cpuoct2019verbose-5072833.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.
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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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