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Security Bulletin: Vulnerability in glib2 (CVE-2021-27218 and CVE-2021-27219) affects Power HMC

Security Bulletin


Summary

glib2 is used by Power Hardware Management Console (HMC). HMC has addressed the applicable CVEs.

Vulnerability Details

CVEID:   CVE-2021-27218
DESCRIPTION:   GNOME GLib is vulnerable to a denial of service, caused by an error when invoking g_byte_array_new_take() with a buffer of 4GB or more on a 64-bit platform. An attacker could exploit this vulnerability to cause unintended length truncation.
CVSS Base score: 6.2
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196784 for the current score.
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2021-27219
DESCRIPTION:   GNOME GLib could allow a remote attacker to cause a denial of service, caused by an integer overflow in the g_bytes_new function. An attacker could exploit this vulnerability to corrupt memory and cause a denial of service.
CVSS Base score: 7.5
CVSS Temporal Score: See: https://exchange.xforce.ibmcloud.com/vulnerabilities/196782 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

Affected Product(s) Version(s)
HMC V10.1.1010.0 V10.1.1010.0
HMC V9.2.950.0 V9.2.950.0

Remediation/Fixes

 

Remediation/Fixes

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

Product
VRMF
APAR
Remediation/Fix
Power HMC
V9.2.952.0 ppc
MB04300
Power HMC
V9.2.952.0 x86
MB04299
Power HMC
V10.1.1010.0 ppc
MB04291
Power HMC
V10.1.1010.0 x86
MB04294

Workarounds and Mitigations

None

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References

Complete CVSS v3 Guide
On-line Calculator v3

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Related Information

IBM Secure Engineering Web Portal
IBM Product Security Incident Response Blog

Change History

19 Nov 2021: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Document Location

Worldwide

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Document Information

Modified date:
22 November 2021

UID

ibm16518308

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