Security Bulletin: Vulnerability in kernel affects Power Hardware Management Console (CVE-2018-14633)

Summary

Power Hardware Management Console is affected by security vulnerabilities in the Linux Kernel. Power Hardware Management Console has addressed the applicable CVE.

Vulnerability Details

CVEID: CVE-2018-14633 DESCRIPTION: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target’s code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable.
CVSS Base Score: 7
CVSS Environmental Score*: Undefined
CVSS Vector: ( CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H )

Affected Products and Versions

Power HMC V8.7.0.0
Power HMC V9.1.930.0

Remediation/Fixes

Remediation/Fixes

The following fixes are available on IBM Fix Central at: <http://www-933.ibm.com/support/fixcentral/&gt;

Product

|

VRMF

|

APAR

|

Remediation/Fix

—|—|—|—

Power HMC

|

V8.8.7.1 SP3 ppc

|

MB04210

|

MH01824

Power HMC

|

V8.8.7.1 SP3 x86

|

MB04209

|

MH01823

Power HMC

|

V9.1.930.1 SP1 ppc

|

MB04213

|

MH01826

Power HMC

|

V9.1.930.0 SP1 x86

|

MB04212

|

MH01825

Workarounds and Mitigations

None