Security Bulletin: Security Bulletin: GNU C library (glibc) vulnerability is fixed in IBM Security Access Manager for Enterprise Single Sign-On Virtual Appliance (CVE-2015-0235)
GNU C library (glibc) vulnerability that has been referred to as GHOST affects IBM Security Access Manager for Enterprise Single Sign-On Virtual Appliance (ISAM ESSO VA)
DESCRIPTION: glibc is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the __nss_hostname_digits_dots() function. By sending an invalid hostname argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
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 Enterprise Single Sign-On Virtual Appliance 8.2.0
|Product Versions||Fix Availability|
|ISAM ESSO VA 8.2.0||8.2.0-ISS-SAMESSO-VA-IF0002|
Workarounds and Mitigations
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ReferencesComplete CVSS v2 Guide
On-line Calculator v2
Related informationIBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog
*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.
According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.