Security Bulletin: Vulnerability in libtasn1 (CVE-2021-46848) affects Power HMC

Summary

Libtasn1 has a vulnerability and is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVE.

Vulnerability Details

CVEID:CVE-2021-46848
**DESCRIPTION:**GNU Libtasn1 could allow a remote attacker to obtain sensitive information, caused by an out-of-bound access flaw in ETYPE_OK. By sending a specially-crafted request, an attacker could exploit this vulnerability to obtain sensitive information, or cause a denial of service condition.
CVSS Base score: 9.1
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/240735 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H)

Affected Products and Versions

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

|

V9.2.950.0 SP3 ppc

|

MB04397

|

MH01954

Power HMC

|

V9.2.950.0 SP3 x86

|

MB04396

|

MH01953

Power HMC

|

V10.1.1020.0 SP1 ppc

|

MB04388

|

MF70701

Power HMC

|

V10.1.1020.0 SP1 x86

|

MB04387

|

MF70700

Power HMC

|

V10.2.1030.0 ppc

|

MB04401

|

MF70890

Power HMC

|

V10.2.1030.0 SP1 x86

|

MB04400

|

MF70889

Workarounds and Mitigations

None