Security Bulletin: GNU C library (glibc) vulnerability affects IBM Security Access Manager for Web (CVE-2015-0235)

Summary

GNU C library (glibc) vulnerability that has been referred to as GHOST affects IBM Security Access Manager for Web.

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 https://exchange.xforce.ibmcloud.com/vulnerabilities/100386 for 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 Security Access Manager for Web version 7.0 - appliance

IBM Security Access Manager for Web versions 8.0, 8.0.0.2, 8.0.0.4, 8.0.0.5, 8.0.1 - appliance

Remediation/Fixes

The table below provides links to patches for all affected versions. Follow the installation instructions in the README file included with the patch.

2. Apply the following 7.0.0.10 interim fix:
   7.0.0.10-ISS-WGA-IF0001

_IBM Security Access Manager for Web (Appliance-based) _| 7.0.0.10 | IV69013| Apply the following interim fix:
7.0.0.10-ISS-WGA-IF0001
IBM Security Access Manager for Web| 8.0
8.0.0.2
8.0.0.4
8.0.0.5| IV69013| 1) Upgrade to the 8.0.1 package:
_IBM Security Access Manager V8.0.1 Base Virtual Appliance .pkg Multiplatform Multilingual (CN34GML) _

2. Apply the following 8.0.1 interim fix:
   8.0.1.0-ISS-WGA-IF0001
   IBM Security Access Manager for Web| 8.0.1| IV69013| Apply the following interim fix:
   8.0.1.0-ISS-WGA-IF0001

Once updates have been applied, any process using glibc will need to be restarted. Given that nearly all system processes use glibc, rebooting after upgrading is suggested.

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 known