Moderate: linux-firmware security update

Topic

An update for linux-firmware is now available for Red Hat Enterprise Linux 7.6 Advanced Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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):

• hw amd: Return Address Predictor vulnerability leading to information disclosure (CVE-2023-20569)
• hw: amd: Cross-Process Information Leak (CVE-2023-20593)

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.

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 Server - AUS 7.6 x86_64

Fixes

• BZ - 2207625 - CVE-2023-20569 hw amd: Return Address Predictor vulnerability leading to information disclosure
• BZ - 2217845 - CVE-2023-20593 hw: amd: Cross-Process Information Leak

CVEs

• CVE-2023-20569
• CVE-2023-20593

References

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