Security Bulletin
Summary
IBM Rational ClearCase is affected by an Expat library heap-based buffer over-read in XML_GetCurrentLineNumber leading to a denial of service vulnerability
Vulnerability Details
DESCRIPTION: libexpat is vulnerable to a denial of service, caused by a heap-based buffer over-read in XML_GetCurrentLineNumber. By using a specially-crafted XML input, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 5.3
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/166560 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Affected Products and Versions
ClearCase client version
|
Status
|
9.0.1 through 9.0.1.8
|
Affected
|
9.0 through 9.0.0.6
|
Affected
|
8.0.1 through 8.0.1.22
|
Affected
|
8.0 through 8.0.0.21
|
Affected
|
Remediation/Fixes
Affected Versions
|
Applying the fix
|
9.0.1 through 9.0.1.8
9.0 through 9.0.0.6
|
Install Rational ClearCase Fix Pack 9 (9.0.1.9) for 9.0.1 |
8.0.1 through 8.0.1.22
8.0 through 8.0.0.21
|
Install Rational ClearCase Fix Pack 23 (8.0.1.23) for 8.0.1 |
Workarounds and Mitigations
Get Notified about Future Security Bulletins
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.
References
Change History
27 March 2020: Original copy published
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
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Document Information
Modified date:
27 March 2020
UID
ibm13609135