Security Bulletin: IBM RackSwitch firmware products are affected by vulnerabilities in Libxml2

Summary

The following vulnerabilites in Libxml2 have been addressed by IBM RackSwitch firmware products.

Vulnerability Details

CVEID:CVE-2021-3517
**DESCRIPTION:**GNOME libxml2 is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by xmlEncodeEntitiesInternal() in entities.c. By sending a specially crafted file, a remote attacker could trigger an out-of-bounds read and execute arbitrary code on the system or cause a denial of service.
CVSS Base score: 8.6
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/202526 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H)

CVEID:CVE-2021-3537
**DESCRIPTION:**GNOME libxml2 is vulnerable to a denial of service, caused by a NULL pointer dereference flaw when parsing XML mixed content in recovery mode and post-validated. A remote attacker could exploit this vulnerability to cause the application to crash.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/203084 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Remediation/Fixes

Firmware fix versions are available on Fix Central: <http://www.ibm.com/support/fixcentral/&gt;

IBM RackSwitch G7028

(G7028_Image_7.6.11.0)

| 7.6.11.0

IBM RackSwitch G8316

(G8316_Image_7.9.33.0)

| 7.9.33.0

IBM RackSwitch G8052

(G8052_Image_7.11.23.0)

| 7.11.23.0

IBM RackSwitch G8264

(G8264_Image_7.11.23.0)

| 7.11.23.0

IBM RackSwitch G8332

(G8332_Image_7.7.39.0)

| 7.7.39.0

IBM RackSwitch G8264T

(G8264T_Image_7.9.33.0)

| 7.9.33.0

IBM RackSwitch G8124/G8124E

(G8124_G8124E_Image_7.11.23.0)

| 7.11.23.0

G8264CS_SI_Fabric_Image - Bundle

(G8264CS_SI_Fabric_Image_7.8.31.0)

| 7.8.31.0

IBM RackSwitch G8264CS

(G8264CS_Image_7.8.31.0)

| 7.8.31.0

Workarounds and Mitigations

None