Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2019.2336
Multiple vulnerabilities in IBM Java Runtime affect IBM
Rational ClearCase (CVE-2018-12547, CVE-2018-1890)
28 June 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: IBM Rational ClearCase
Publisher: IBM
Operating System: AIX
HP-UX
Linux variants
Solaris
Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-12547 CVE-2018-1890
Reference: ESB-2019.2310
ESB-2019.2304
ESB-2019.2297
ESB-2019.2268
ESB-2019.2259
ESB-2019.2200
Original Bulletin:
http://www.ibm.com/support/docview.wss?uid=ibm10885024
- --------------------------BEGIN INCLUDED TEXT--------------------
Multiple vulnerabilities in IBM Java Runtime affect IBM Rational ClearCase
(CVE-2018-12547, CVE-2018-1890)
Product: Rational ClearCase
Component: ClearCase Remote Client
Software version: 9.0, 9.0.0.1, 9.0.0.2, 9.0.0.3, 9.0.0.4, 9.0.0.5, 9.0.0.6,
9.0.1, 9.0.1.1, 9.0.1.2, 9.0.1.3, 9.0.1.4, 9.0.1.5,
9.0.1.6, 9.0.1.7
Operating system(s): AIX, HP-UX, Linux, Solaris, Windows
Reference #: 0885024
Security Bulletin
Summary
There are multiple vulnerabilities in IBM Runtime Environment Java Versions 7
and 8, which are used by IBM Rational ClearCase. These issues were disclosed as
part of the IBM Java SDK updates in March 2019.
Vulnerability Details
CVEID: CVE-2018-1890
DESCRIPTION: IBM SDK, Java Technology Edition Version 8 on the AIX platform
uses absolute RPATHs which may facilitate code injection and privilege
elevation by local users.
CVSS Base Score: 5.6
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
152081 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L)
CVEID: CVE-2018-12547
DESCRIPTION: Eclipse OpenJ9 is vulnerable to a buffer overflow, caused by
improper bounds checking by the jio_snprintf()and jio_vsnprintf() functions. By
sending an overly long argument, a remote attacker could overflow a buffer and
execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 9.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/
157512 for more information
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Affected Products and Versions
IBM Rational ClearCase version 9 in the following components:
o CCRC WAN server/CM Server component, when configured to use SSL
o ClearCase remote client: CCRC/CTE GUI, rcleartool, and CMAPI clients
+---------------------------------------+-------------------------------------+
| ClearCase version | Status |
+---------------------------------------+-------------------------------------+
| 9.0.1 through 9.0.1.6 | Affected |
+---------------------------------------+-------------------------------------+
| 9.0 through 9.0.0.6 | Affected |
+---------------------------------------+-------------------------------------+
Remediation/Fixes
The solution is to install a fix that includes an updated Java Virtual Machine
with fixes for the issues, and to apply fixes for WebSphere Application Server
(WAS).
Client and server fixes
Apply the relevant fixes as listed in the table below.
+-------------------+---------------------------------------------------------+
| Affected Versions | Applying the fix |
+-------------------+---------------------------------------------------------+
| 9.0.1 through |Install Rational ClearCase Fix Pack 7 (9.0.1.7) for 9.0.1|
| 9.0.1.6 | |
|9.0 through 9.0.0.6| |
+-------------------+---------------------------------------------------------+
For 8.0 and earlier releases, IBM recommends upgrading to a fixed, supported
version/release/platform of the product.
Notes:
o If you use CCRC as an extension offering installed into an Eclipse shell
(one not provided as part of a ClearCase release), or you use rcleartool or
CMAPI using a Java Virtual Machine not supplied by IBM as part of Rational
ClearCase, you should update the Java Virtual Machine that you use to
include a fix for the above issues. Contact the supplier of your Java
Virtual Machine and/or the supplier of your Eclipse shell.
o This fix will not correct the problem for the standalone CCRC product or
the full CC and CQ products for 32-bit Java running on linux_x86. The
Eclipse 4.4.2 that is required for these products on linux_x86 32-bit
crashes when run with the fixed Java. We are continuing to ship the
previous IBM Java from October 2018 (Java 8.0.5.25) on linux_x86 32-bit (so
it is still vulnerable to the issues identified in this Security Bulletin).
CCRC WAN server fixes
+-------------------+---------------------------------------------------------+
| Affected Versions | Applying the fix |
+-------------------+---------------------------------------------------------+
|9.0.0.x |Apply the appropriate WebSphere Application Server fix |
|9.0.1.x |directly to your CCRC WAN server host. No |
| |ClearCase-specific steps are necessary. |
+-------------------+---------------------------------------------------------+
1. Determine the WAS version used by your CCRC WAN server. Navigate to the
CCRC profile directory (either the profile you specified when installing
ClearCase, or <ccase-home>/common/ccrcprofile ), then execute the script:
bin/versionInfo.sh (UNIX) or bin\versionInfo.bat (Windows). The output
includes a section "IBM WebSphere Application Server". Make note of the
version listed in this section.
2. Review the following WAS security bulletin:
Security Bulletin: Multiple vulnerabilities in IBM Java SDK affects
WebSphere Application Server January 2019 CPU
and apply the latest available fix for the version of WAS used for CCRC WAN
server.
Note: there may be newer security fixes for WebSphere Application Server.
Follow the link below (in the section "Get Notified about Future Security
Bulletins") to subscribe to WebSphere product support alerts for additional
Java SDK fixes.
Workarounds and Mitigations
If you require this security fix for the standalone CCRC product or the full CC
product for 32-bit Java running on linux_x86 32-bit, you can switch to the
linux_x86 64-bit offering, which will contain the fix specified in this
Security Bulletin.
Important Note
IBM strongly suggests that all System z customers be subscribed to the System z
Security Portal to receive the latest critical System z security and integrity
service. If you are not subscribed, see the instructions on the System z
Security web site . Security and integrity APARs and associated fixes will be
posted to this portal. IBM suggests reviewing the CVSS scores and applying all
security or integrity fixes as soon as possible to minimize any potential risk.
Change History
20 June 2019: Originally published
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. 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.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
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.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=UHq1
-----END PGP SIGNATURE-----