QID 239460

Date Published: 2021-07-21

QID 239460: Red Hat Update for edk2 (RHSA-2021:2591)

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)

Affected Products:

Red Hat Enterprise Linux for x86_64 8 x86_64
Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.4 x86_64
Red Hat Enterprise Linux Server - AUS 8.4 x86_64
Red Hat Enterprise Linux Server - TUS 8.4 x86_64
Red Hat Enterprise Linux for ARM 64 8 aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.4 aarch64
Red Hat Enterprise Linux Server - Update Services for SAP Solutions 8.4 x86_64

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

On successful exploitation, it could allow an attacker to execute code.

  • CVSS V3 rated as High - 6.7 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Upgrade to the latest packages which contain a patch. Refer to Applying Package Updates to RHEL system for details.

    Refer to Red Hat security advisory RHSA-2021:2591 to address this issue and obtain more information.

    Vendor References

    CVEs related to QID 239460

    CVE-2021-28211 |
    Software Advisories
    Advisory ID Software Component Link
    RHSA-2021:2591 Red Hat Enterprise Linux URL Logo access.redhat.com/errata/RHSA-2021:2591?language=en
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