RHSA-2024:1415 - Security Advisory

Topic

An update for edk2 is now available for Red Hat Enterprise Linux 8.8 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

EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.

Security Fix(es):

• edk2: Buffer overflow in the DHCPv6 client via a long Server ID option (CVE-2023-45230)
• edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler() (CVE-2019-14560)
• openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)
• edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message (CVE-2023-45234)

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 for x86_64 - Extended Update Support 8.8 x86_64
• Red Hat Enterprise Linux for x86_64 - Extended Update Support Extension 8.8 x86_64
• Red Hat Enterprise Linux Server - TUS 8.8 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.8 aarch64
• Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.8 x86_64

Fixes

• BZ - 1858038 - CVE-2019-14560 edk2: Function GetEfiGlobalVariable2() return value not checked in DxeImageVerificationHandler()
• BZ - 2224962 - CVE-2023-3446 openssl: Excessive time spent checking DH keys and parameters
• BZ - 2258685 - CVE-2023-45230 edk2: Buffer overflow in the DHCPv6 client via a long Server ID option
• BZ - 2258697 - CVE-2023-45234 edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise message

CVEs

• CVE-2019-14560
• CVE-2023-3446
• CVE-2023-45230
• CVE-2023-45234

References

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