Security Bulletin
Summary
IBM Rational ClearCase is affected by cURL/libcURL vulnerabilities.
Vulnerability Details
CVEID: CVE-2017-1000100
DESCRIPTION: cURL could allow a remote attacker to obtain sensitive information, caused by a TFTP URL processing error when doing a TFTP transfer. By redirecting a libcurl-using client request to a TFTP URL containing an overly long file name, an attacker could exploit this vulnerability to send private memory contents and obtain sensitive information.
CVSS Base Score: 5.9
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/130190 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVEID: CVE-2017-1000254
DESCRIPTION: libcurl is vulnerable to a denial of service, caused by a buffer overread in the string parser. By sending a specially-crafted response to a PWD command, a remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base Score: 7.5
CVSS Temporal Score: https://exchange.xforce.ibmcloud.com/vulnerabilities/133027 for more information
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-2017-1000257
DESCRIPTION: cURL is vulnerable to a denial of service, caused by a buffer overread in the IMAP handler. By using a specially crafted IMAP FETCH response, a remote attacker could exploit this vulnerability to cause the application to crash or obtain sensitive information.
CVSS Base Score: 6.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/134033 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:N/A:L)
Affected Products and Versions
The cURL component is used in the CMI integration, the OSLC-based ClearQuest integration, and in the automatic view client.
ClearCase client version | Status |
9.0.1 through 9.0.1.1 | Affected |
9.0 through 9.0.0.5 | Affected |
8.0.1 through 8.0.1.15 | Affected |
8.0 through 8.0.0.21 | Affected |
Remediation/Fixes
The solution is to upgrade to a fix pack of ClearCase that disables the vulnerable configuration in the cURL component.
Affected Versions | Applying the fix |
9.0.1 through 9.0.1.1 | Install Rational ClearCase Fix Pack 2 (9.0.1.2) for 9.0.1 |
9.0 through 9.0.0.5 | Install Rational ClearCase Fix Pack 6 (9.0.0.6) for 9.0 |
8.0.1 through 8.0.1.15 8.0 through 8.0.0.21 | Install Rational ClearCase Fix Pack 16 (8.0.1.16) for 8.0.1 |
Workarounds and Mitigations
None
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Important Note
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References
Change History
18 December 2017: Original copy published
1 March 2018: Fixed links to download packages
*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
swg22008567