Security Bulletin
Summary
Vulnerabilities have been discovered in libpng that is embedded in the IBM FSM. This bulletin addresses these vulnerabilities.
Vulnerability Details
CVEID: CVE-2015-8126
DESCRIPTION: libpng is vulnerable to a buffer overflow, caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions. By persuading a victim to open a specially-crafted PNG file, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.8
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/108010 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CVEID: CVE-2015-7981
DESCRIPTION: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/107740 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:N)
Affected Products and Versions
Flex System Manager 1.3.4.x
Flex System Manager 1.3.3.x
Flex System Manager 1.3.2.x
Remediation/Fixes
IBM recommends updating the FSM using the instructions referenced in this table.
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| Flex System Manager |
| IT16023 | Verify that Java updates have been installed, then install fsmfix1.3.4.0_IT15533_IT15534_IT15535_IT15536_IT16023. Instructions for installing and verifying the installation of java updates can be found in Technote 761981453 |
| Flex System Manager |
| IT16023 | Verify that Java updates have been installed, then install fsmfix1.3.3.0_IT15533_IT15534_IT15535_IT15536_IT16023. Instructions for installing and verifying the installation of java updates can be found in Technote 736218441 |
| Flex System Manager |
| IT16023 | Verify that Java updates have been installed, then install fsmfix1.3.2.0_IT15533_IT15534_IT15535_IT15536_IT16023. Instructions for installing and verifying the installation of java updates can be found in Technote 736218441 |
You should verify applying this fix does not cause any compatibility issues. The fix disables MD5 signature hash by default. IBM recommends that you review your entire environment to identify other areas where you have enabled the MD5 signature hash and take appropriate mitigation and remediation actions.
Workarounds and Mitigations
None
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References
Change History
18 July 2016 : 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.
Internal Use Only
Advisory 4721, PSIRT 71645
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Document Information
Modified date:
17 June 2018
UID
isg3T1023984