Important: linux-firmware security and bug fix update

Synopsis

Important: linux-firmware security and bug fix update

Type/Severity

Security Advisory: Important

Topic

An update for linux-firmware is now available for Red Hat Enterprise Linux 8.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The linux-firmware packages contain all of the firmware files that are required by various devices to operate.

Security Fix(es):

• hardware: buffer overflow in bluetooth firmware (CVE-2020-12321)
  

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Remove buggy ucode patch from microcode_amd_fam17h.bin (BZ#1872773)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.2 x86_64
• Red Hat Enterprise Linux Server - TUS 8.2 x86_64
• Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.2 x86_64

Fixes

• BZ - 1893914 - CVE-2020-12321 hardware: buffer overflow in bluetooth firmware

CVEs

• CVE-2020-12321

References

• https://access.redhat.com/security/updates/classification/#important