IBM Support

Security Bulletin: GNU C library (glibc) vulnerability affects DS8000 (CVE-2015-0235)

Security Bulletin


Summary

GNU C library (glibc) vulnerability that has been referred to as GHOST affects DS8000

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

All

Remediation/Fixes

Product

VRMFAPARRemediation/First Fix
DS8000 CVE_GHOST_PATCH_v1.0.isoN/A02/11/2015

The above patch is applicable to VRMFs R4.3- 64.36.xx.xx, R6.3 - 76.31.xx.xx / 86.31.xx.xx, and R7.x 87.21.xx.xx/ 87.3x.xx.xx / 87.4x.xx.xx and is applied to the attached HMCs.

This security bulletin will be updated with the specific service release levels for DS8870,DS8880,DS8700 and DS8100/DS8300 as these are made available.


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

Get Notified about Future Security Bulletins

Important Note

IBM strongly suggests that all System z customers be subscribed to the System z Security Portal to receive the latest critical System z security and integrity service. If you are not subscribed, see the instructions on the System z Security web site. Security and integrity APARs and associated fixes will be posted to this portal. IBM suggests reviewing the CVSS scores and applying all security or integrity fixes as soon as possible to minimize any potential risk.

References

Off

*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.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

[{"Product":{"code":"ST8NCA","label":"Disk systems->DS8870"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":"Not Applicable","Platform":[{"code":"PF016","label":"Linux"}],"Version":"All Versions","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"ST8NCA","label":"Disk systems->DS8870"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"HW2B2","label":"Disk systems->DS8100"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"HW2C2","label":"Disk systems->DS8300"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"","label":""}},{"Product":{"code":"STUVMB","label":"Disk systems->DS8700"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}},{"Product":{"code":"STXN8P","label":"IBM DS8800"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Component":" ","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
24 May 2022

UID

ssg1S1005056