Security Bulletin: IBM Flex System Manager (FSM) is affected by multiple php5 vulnerabilities (CVE-2016-6911, CVE-2016-8670)

Security Bulletin

Summary

Multiple security vulnerabilities have been identified in php5 that is embedded in IBM FSM. This bulletin addresses these issues.

Vulnerability Details

CVEID: CVE-2016-6911
DESCRIPTION: libgd2 - GD Graphics Library is vulnerable to a denial of service, caused by a missing check for out-of-bounds read in the dynamicGetbuf() function. By persuading a victim to open a specially crafted TIFF image file, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base Score: 4.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119311 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L)

CVEID: CVE-2016-8670
DESCRIPTION: libgd2 - GD Graphics Library is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the dynamicGetbuf() function. By persuading a victim to open a specially crafted image file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 6.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/119312 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

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 using the instructions referenced in this table.

Product	VRMF	APAR	Remediation
Flex System Manager	1.3.4.0	IT13720	Install fsmfix1.3.4.0_IT13720_IT13721_IT13722_IT18327_IT18400
Flex System Manager	1.3.3.0	IT13720	Install fsmfix1.3.3.0_IT13720_IT13721_IT13722_IT18327_IT18400
Flex System Manager	1.3.2.1 1.3.2.0	IT13720	Install fsmfix1.3.2.0_IT13720_IT13721_IT13722_IT18327_IT18400

For all VRMF not listed in this table, IBM recommends upgrading to a fixed and supported version/release of the product.

For a complete list of FSM security bulletins refer 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

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References

Complete CVSS v2 Guide
On-line Calculator v2

Complete CVSS v3 Guide
On-line Calculator v3

Off

Change History

9 February 2017: 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

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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Tips

Security Bulletin: IBM Flex System Manager (FSM) is affected by multiple php5 vulnerabilities (CVE-2016-6911, CVE-2016-8670)