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Security Bulletin: Vulnerabilities in Perl component shipped with IBM Rational ClearQuest (CVE-2015-8608, CVE-2015-8853, CVE-2016-2381)

Security Bulletin


Summary

IBM Rational ClearQuest 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

Rational ClearQuest 7.1 through 7.1.2.19, 8.0 through 8.0.0.20, 8.0.1 through 8.0.1.13, and 9.0 through 9.0.0.3.

Remediation/Fixes

Install a fix pack containing fixes:

Affected version
Fixes
9.0 through 9.0.0.3
Install Rational ClearQuest 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 ClearQuest Fix Pack 14 (8.0.1.14) for 8.0.1
7.1 through 7.1.2.19
Customers on extended support contracts for 7.1 should contact Customer Support for information.
For 7.0 and 7.1 and earlier releases, IBM recommends upgrading to a fixed, supported version/release/platform of the product.

Workarounds and Mitigations

None

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

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:
04 February 2020

UID

swg21998868

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