RHSA-2021:2591 — Security Advisory
Red Hat Security Advisory: edk2 security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · June 30, 2021
Updated · November 22, 2025
Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8.
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
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: possible heap corruption with LzmaUefiDecompressGetInfo (CVE-2021-28211)
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.