Security Bulletin
Summary
IBM Rational ClearCase is affected by vulnerabilities in the Perl interpreter.
Vulnerability Details
CVEID: CVE-2015-8608
DESCRIPTION: Perl could allow a remote attacker to execute arbitrary code on the system, caused by an out-of-bounds read in the VDir::MapPathA and VDir::MapPathW functions. An attacker could exploit this vulnerability to execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112127 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2015-8853
DESCRIPTION: Perl is vulnerable to a denial of service, caused by the improper handling of illegal inputs. An attacker could exploit this vulnerability using regular expression on malformed UTF8 input to cause the application to enter into an infinite loop and consume all available CPU resources.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112536 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CVEID: CVE-2016-2381
DESCRIPTION: Perl could allow a remote attacker to bypass security restrictions, caused by improper handling of $ENV{"X"} variable. By using duplicate environment variables in envp, an attacker could exploit this vulnerability to bypass the taint protection mechanism.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/112139 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N)
Affected Products and Versions
IBM Rational ClearCase versions:
Version | Status |
9.0 through 9.0.0.3 | Affected |
8.0.1 through 8.0.1.13 | Affected |
8.0 through 8.0.0.20 | Affected |
7.1 through 7.1.2.19 (all releases and fix packs) | Affected |
You may be vulnerable if you use your own perl scripts executed by the ratlperl interpreter shipped with Rational ClearCase, and those scripts use one of the vulnerable parts of perl.
Remediation/Fixes
The solution is to upgrade to a fix pack of ClearCase that has a fix in ratlperl.
Affected Versions | Applying the fix |
9.0 through 9.0.0.3 | Install Rational ClearCase Fix Pack 4 (9.0.0.4) for 9.0 |
8.0.1 through 8.0.1.13 8.0 through 8.0.0.20 | Install Rational ClearCase Fix Pack 14 (8.0.1.14) for 8.0.1 |
7.1 through 7.1.2.19 (all releases and fix packs) | Customers on extended support contracts should contact Customer Support for information. |
Workarounds and Mitigations
None
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Important Note
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References
Change History
15 March 2017: 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:
10 July 2018
UID
swg21998046