Security Bulletin: Vulnerabilities in cURL/libcurl affect Intel® Manycore Platform Software Stack (Intel® MPSS) for Linux and Windows

Summary

Intel® Manycore Platform Software Stack (Intel® MPSS) for Linux and Windows have addressed the following vulnerabilities in cURL/libcurl.

Vulnerability Details

Summary

Intel® Manycore Platform Software Stack (Intel® MPSS) for Linux and Windows have addressed the following vulnerabilities in cURL/libcurl.

Vulnerability Details

CVEID: CVE-2016-9586

Description: cURL/libcurl is vulnerable to a buffer overflow, caused by improper boundary checks by the floating point conversion. By sending a specially crafted string, a remote attacker could overflow a buffer and execute arbitrary code on the system.

CVSS Base Score: 7.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/119929&gt; 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-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&gt; 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)

CVEID: CVE-2017-8818

Description: cURL libcurl is vulnerable to a denial of service, caused by an out-of-bounds access flaw in the SSL library. By sending a specially-crafted request, a remote attacker could exploit this vulnerability to cause the application to crash.

CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/135659&gt; 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-2017-8816

Description: cURL libcurl is vulnerable to a buffer overflow, caused by an integer overflow flaw in the NTLM authentication feature. By using vectors involving long user and password fields, a remote attacker could overflow a buffer and execute arbitrary code and cause the application to crash.

CVSS Base Score: 9.8
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/135657&gt; for the current score
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)

CVEID: CVE-2017-8817

Description: cURL libcurl could allow a remote attacker to bypass security restrictions, caused by an out-of-bounds read flaw in the FTP wildcard matching function (CURLOPT_WILDCARDMATCH). By using a string that ends with an ‘’[‘’ character, an attacker could exploit this vulnerability to redirect the victim to an arbitrary site.

CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/135658&gt; 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)

CVEID: CVE-2017-7407

Description: curl could allow a physical attacker to obtain sensitive information, caused by an error in the ourWriteOut function in tool_writeout.c. By reading a workstation screen during use of a --write-out argument ending in a ‘’%‘’ character, an attacker could exploit this vulnerability to obtain sensitive information from process memory.

CVSS Base Score: 2.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/125384&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Affected Products and Versions

The following products used with Intel Xeon Phi PCI-Express cards (Intel Xeon Phi 3120A, Intel Xeon Phi 5110P, Intel Xeon Phi 7120A, and Intel Xeon Phi 7210P) on the System x systems:

• iDataPlex dx360 M4
• NeXtScale nx360 M4
• PureFlex x220 M4 / x240 M4 / x240 M5
• x3850 X6 / x3950 X6
  Product | Version
  —|—
  Intel® Manycore Platform Software Stack (MPSS) for Linux & Windows | 3.8

Remediation/Fixes

IBM recommends that you update the affected versions of Intel MPSS that are used with the Intel Xeon Phi cards supported in IBM System x Servers to MPSS version 3.8.4 or later.

Instructions on how to download and apply the update are available at: https://software.intel.com/en-us/articles/intel-manycore-platform-software-stack-mpss

Workarounds and Mitigations

None.

References

• Complete CVSS V3 Guide
• On-line Calculator V3

Related Information
IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
Lenovo Product Security Advisories

Acknowledgement

None.

Change History
15 May, 2018: Original Version 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

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an “industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response.” IBM PROVIDES THE CVSS SCORES “AS IS” WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.