Red Hat Security Advisory: linux-firmware security update

Fixed packages 21

Vulnerabilities 2

• Unscored —
  CVE-2023-20569

  A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. …

  AMD 3rd Gen AMD EPYC™ Processors 2nd Gen AMD EPYC™ Processors 4th Gen AMD EPYC™ Processors Debian Ubuntu Alpine
  Aug 8, 2023
• Unscored —
  CVE-2023-20593 Public exploit

  An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentially access …

  AMD 2nd Gen AMD EPYC™ Processors Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Lucienne” 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDT Debian Ubuntu Alpine
  Jul 24, 2023

References

• article
  https://access.redhat.com/security/updates/classification/#moderate
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2207625
• report
  https://bugzilla.redhat.com/show_bug.cgi?id=2217845
• advisory
  https://security.access.redhat.com/data/csaf/v2/advisories/2023/rhsa-2023_7401.json
• report
  https://access.redhat.com/security/cve/CVE-2023-20569
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-20569
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-20569
• article
  https://access.redhat.com/solutions/7049120
• article
  https://www.amd.com/content/dam/amd/en/documents/corporate/cr/speculative-return-stack-overflow-whitepaper.pdf
• article
  https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7005.html
• report
  https://access.redhat.com/security/cve/CVE-2023-20593
• advisory
  https://www.cve.org/CVERecord?id=CVE-2023-20593
• advisory
  https://nvd.nist.gov/vuln/detail/CVE-2023-20593
• article
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=522b1d69219d8f083173819fde04f994aa051a98
• article
  https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7008.html