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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Moderate: edk2 security update
Advisory ID:       RHSA-2021:2591-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2591
Issue date:        2021-06-29
CVE Names:         CVE-2021-28211 
=====================================================================

1. Summary:

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux AppStream (v. 8) - noarch

3. 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.

4. 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

5. Bugs fixed (https://bugzilla.redhat.com/):

1883529 - CVE-2021-28211 edk2: possible heap corruption with LzmaUefiDecompressGetInfo

6. Package List:

Red Hat Enterprise Linux AppStream (v. 8):

Source:
edk2-20200602gitca407c7246bf-4.el8_4.1.src.rpm

noarch:
edk2-aarch64-20200602gitca407c7246bf-4.el8_4.1.noarch.rpm
edk2-ovmf-20200602gitca407c7246bf-4.el8_4.1.noarch.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-28211
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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