RHSA-2024:4419 — Security Advisory

An update for edk2 is now available for Red Hat Enterprise Linux 9.2 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.

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 when handling Server ID option from a DHCPv6 proxy Advertise message (CVE-2023-45235)

• edk2: Integer underflow when processing IA_NA/IA_TA options in a DHCPv6 Advertise message (CVE-2023-45229)

• edk2: Out of Bounds read when handling a ND Redirect message with truncated options (CVE-2023-45231)

• edk2: Predictable TCP Initial Sequence Numbers (CVE-2023-45236)

• edk2: Use of a Weak PseudoRandom Number Generator (CVE-2023-45237)

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.