Security Bulletin: A vulnerability in the Linux Pluggable Authentication Module (PAM) affects the IBM FlashSystem model V9000 (CVE-2015-3238)

Summary

There is a vulnerability in Linux Pluggable Authentication Module (PAM) to which the IBM® FlashSystem™ V9000 is susceptible. An exploit of this vulnerability could allow a remote attacker to expose sensitive information and/or cause a denial of service.

Vulnerability Details

CVEID: CVE-2015-3238 DESCRIPTION: Linux-PAM could allow a local attacker to obtain sensitive information, caused by an error in the _unix_run_helper_binary function in the pam_unix module. An attacker could exploit this vulnerability using an overly large password to enumerate usernames and cause the system to hang.
CVSS Base Score: 5.1
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/106368 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)

Affected Products and Versions

FlashSystem V9000 including machine type and models (MTMs) for all available code levels. MTMs affected include 9846-AE2, 9848-AE2, 9846-AC2, and 9848-AC2

Remediation/Fixes

V9000 MTMs

| VRMF| APAR| Remediation/First Fix
—|—|—|—
V9000 MTMs:
9846-AE2,
9848-AE2,
9846-AC2 &
9848-AC2| Code fixes are now available, the minimum VRMF containing the fix depends on the code stream. These code levels work for both the storage enclosure nodes (-AEx) and the control nodes (-ACx)

Code Fix VRMF .
7.6 stream: 7.6.0.4 (or later)
7.5 stream: 7.5.1.3 (or later)
7.4 stream: 7.4.1.4 (or later)| _ _N/A| No workarounds or mitigations, other than applying this code fix, are known for this vulnerability

FlashSystem V9000 fixes**for storage and controller node **are available @ IBM’s Fix Central

Workarounds and Mitigations

None