Security Bulletin: Multiple vulnerabilities in curl affect IBM Flex System Manager (FSM) (CVE-2016-9586, CVE-2017-7407 )

Summary

Multiple vulnerabilities have been identified in curl that is embedded in the FSM. This bulletin addresses these vulnerabilities.

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 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-2017-7407**
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 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

Flex System Manager 1.3.4.0
Flex System Manager 1.3.3.0
Flex System Manager 1.3.2.1
Flex System Manager 1.3.2.0

Remediation/Fixes

IBM recommends updating the FSM and all affected remote Common Agent Services (CAS) endpoints using the instructions referenced in this table.

For all other VRMF IBM recommends upgrading to a fixed, supported version/release of the product.

Note: Installation of the fixes provided in the technote will install a cumulative fix package that will update the version of the FSM. Reference the technote for more details.

You should verify applying this fix does not cause any compatibility issues. The fix may disable older encrypted protocols by default.

IBM recommends that you review your entire environment to identify other areas where you have enabled weak encryption and take appropriate mitigation and remediation actions.

For a complete listing of FSM security iFixes go to this technote: http://www-01.ibm.com/support/docview.wss?uid=nas7797054ebc3d9857486258027006ce4a0&myns=purflex&mync=E&cm_sp=purflex--NULL--E

Workarounds and Mitigations

None