Security Bulletin: GNU C library (glibc) vulnerability affects IBM Security Network Protection (CVE-2015-0235)

Summary

GNU C library (glibc) vulnerability that has been referred to as GHOST affects IBM Security Network Protection.

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 Network Protection 5.2
• IBM Security Network Protection 5.3

Remediation/Fixes

Product

| Version|APAR|Remediation
—|—|—|—
IBM Security Network Protection| 5.2|
| Download 5.2.0.0-ISS-XGS-All-Models-Hotfix-FP0007 and install via the Available Updates page of the local management interface.
IBM Security Network Protection| 5.3|
| Install Fixpack 5.3.0.4 from the Available Updates page of the local management interface, or by performing a One Time Scheduled Installation from SiteProtector.
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