Security Bulletin: GNU C library (glibc) vulnerability affects IBM System Storage SONAS (CVE-2015-0235)

Summary

GNU C library (glibc) vulnerability that has been referred to as GHOST affects IBM System Storage SONAS

Vulnerability Details

CVEID:CVE-2015-0235
**DESCRIPTION:**The gethostbyname functions of the GNU C Library (glibc) are vulnerable to a buffer overflow. By sending a specially crafted, but valid hostname argument, a remote attacker could overflow a buffer and execute arbitrary code on the system with the privileges of the targeted process or cause the process to crash. The impact of an attack depends on the implementation details of the targeted application or operating system. This issue is being referred to as the “Ghost” vulnerability.

CVSS Base Score: 7.6
CVSS Temporal Score: See http://xforce.iss.net/xforce/xfdb/100386for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (AV:N/AC:H/Au:N/C:C/I:C/A:C)

Affected Products and Versions

IBM System Storage SONAS

All products are affected when running code releases 1.3, 1.4 and 1.5 except for version 1.5.2.0 and above.

Remediation/Fixes

IBM recommends that you fix this vulnerability by upgrading affected versions of IBM System Storage SONAS to the following code level or higher:

1.5.2.0

Please contact IBM support for assistance in upgrading your system.

IBM recommends that you review your entire environment to identify vulnerable releases of glibc including your Operating Systems and take appropriate mitigation and remediation actions. Please contact your Operating System provider for more information.

Workarounds and Mitigations

None
Although IBM recommends that you install a level of code with a fix for this vulnerability, you can mitigate, although not eliminate, your risk until you have done so by ensuring that all users who have access to the system are authenticated by another security system such as a firewall.