Security Bulletin: A Vulnerability in Apache Tomcat affects the IBM FlashSystem models 840 and 900

Summary

There is a vulnerability in Apache Tomcat to which the IBM® FlashSystem™ 840 and FlashSystem™ 900 are susceptible. An exploit of this vulnerability (CVE-2017-6056) could allow a remote attacker to wage a denial of service attack.

Vulnerability Details

CVEID: CVE-2017-6056 DESCRIPTION: Apache Tomcat is vulnerable to a denial of service, caused by a programming error in the servlet and JSP engine. A remote attacker could exploit this vulnerability to cause the server to enter into an infinite loop.
CVSS Base Score: 7.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/122312 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)

Affected Products and Versions

FlashSystem 840 machine type and models (MTMs) affected include 9840-AE1 and 9843-AE1.

FlashSystem 900 MTMs affected include 9840-AE2 and 9843-AE2.

Code versions affected include supported VRMFs:
· 1.4.0.0 – 1.4.2.0
· 1.3.0.0 – 1.3.0.5

Remediation/Fixes

MTMs

| VRMF| APAR| Remediation/First Fix
—|—|—|—
FlashSystem****840 MTM:
9840-AE1 &
9843-AE1

FlashSystem 900 MTMs:
9840-AE2 &
9843-AE2| _Code fixes are now available, the minimum VRMF containing the fix depends on the code stream:

___ Fixed code VRMF .__
_1.4 stream: 1.4.3.0 _
1.3 stream: 1.3.0.6| _ N/A| FlashSystem 840 fixes****and FlashSystem 900 fixes****are available @ IBM’s Fix Central _

Workarounds and Mitigations

None