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
 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: heap buffer overflow in Tcg2MeasureGptTable() (CVE-2022-36763)

* EDK2: heap buffer overflow in Tcg2MeasurePeImage() (CVE-2022-36764)

* EDK2: integer overflow in CreateHob() could lead to HOB OOB R/W
 (CVE-2022-36765)

* 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: Infinite loop when parsing unknown options in the Destination Options
 header (CVE-2023-45232)

* edk2: Infinite loop when parsing a PadN option in the Destination Options
 header (CVE-2023-45233)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise
 Linux 8.10 Release Notes linked from the References section.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2022-36763: Integer Overflow to Buffer Overflow (CWE-680)
CVE-2022-36764: Integer Overflow to Buffer Overflow (CWE-680)
CVE-2022-36765: Integer Overflow to Buffer Overflow (CWE-680)
CVE-2023-45229: Loop with Unreachable Exit Condition ('Infinite Loop')
 (CWE-835)
CVE-2023-45231: Out-of-bounds Read (CWE-125)
CVE-2023-45232: Loop with Unreachable Exit Condition ('Infinite Loop')
 (CWE-835)
CVE-2023-45233: Loop with Unreachable Exit Condition ('Infinite Loop')
 (CWE-835)
CVE-2023-45235: Improper Restriction of Operations within the Bounds of a
 Memory Buffer (CWE-119)