Security Bulletin: Vulnerabilities in libxml2 library (CVE-2023-28484, CVE-2023-29469) affect Power HMC.

Summary

The libxml2 library is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVEs.

Vulnerability Details

CVEID:CVE-2023-28484
**DESCRIPTION:**GNOME libxml2 is vulnerable to a denial of service, caused by a NULL pointer dereference flaw in the xmlSchemaFixupComplexType function. By persuading a victim to open a specially crafted XML content, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253138 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)

CVEID:CVE-2023-29469
**DESCRIPTION:**GNOME libxml2 is vulnerable to a denial of service, caused by a double free flaw in the xmlDictComputeFastKey function due to hashing empty strings are not null-terminated. By persuading a victim to open a specially crafted XML content, a remote attacker could exploit this vulnerability to cause a denial of service condition.
CVSS Base score: 5.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/253143 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/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

|

V10.1.1020.0 SP3 x86

|

MB04446

|

MF71681

Power HMC

|

V10.1.1020.0 SP3 ppc

|

MB04447

|

MF71682

Power HMC

|

V10.2.1040.0 SP2 x86

|

MB04448

|

MF71683

Power HMC

|

V10.2.1040.0 SP2 ppc

|

MB04449

|

MF71684

Power HMC

|

V10.3.1050.0 SP1 x86

|

MB04450

|

MF71685

Power HMC

|

V10.3.1050.0 SP1 ppc

|

MB04451

|

MF71686

Workarounds and Mitigations

None