Security Bulletin: Vulnerabilities in Apache HTTP (CVE-2021-34798 and CVE-2021-39275) affects Power HMC

Summary

Apache HTTP webserver is used by IBM Power Hardware Management Console (HMC) for accepting https request and transfer to and fro to internal applications. This bulletin provides a remediation for the impacted vulnerabilities, CVE-2021-34798 and CVE-2021-39275 by upgrading IBM Power Hardware Management Console (HMC) respective PTF and thus addressing the exposure to the vulnerability.

Vulnerability Details

CVEID:CVE-2021-34798
**DESCRIPTION:**Apache HTTP Server is vulnerable to a denial of service, caused by a NULL pointer dereference in httpd core. By sending a specially crafted request, a remote attacker could exploit this vulnerability to cause a denial of service.
CVSS Base score: 5.9
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209518 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:CVE-2021-39275
**DESCRIPTION:**Apache HTTP Server is vulnerable to a buffer overflow, caused by improper bounds checking by the ap_escape_quotes() function. By sending specially crafted input, a remote attacker could write beyond the end of a buffer.
CVSS Base score: 3.7
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/209529 for the current score.
CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)

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

|

V9.2.952.0 ppc

|

MB04331

|

MH01925

Power HMC

|

V9.2.952.0 x86

|

MB04330

|

MH01924

Power HMC

|

V10.1.1010.0 ppc

|

MB04335

|

MF69724

Power HMC

|

V10.1.1010.0 x86

|

MB04334

|

MF69722

Workarounds and Mitigations

None