Protect yourself against future threats.
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2024.1750
edk2 security update
25 March 2024
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: edk2
Publisher: Red Hat
Operating System: Red Hat
Resolution: Patch/Upgrade
CVE Names: CVE-2023-45234 CVE-2023-3446 CVE-2023-45230
CVE-2019-14560
Original Bulletin:
https://access.redhat.com/errata/RHSA-2024:1415
Comment: CVSS (Max): 8.8 CVE-2023-45234 (CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Red Hat
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- --------------------------BEGIN INCLUDED TEXT--------------------
=====================================================================
Red Hat Security Advisory
Synopsis: Important: edk2 security update
Advisory ID: RHSA-2024:1415
Product: Red Hat Enterprise Linux AppStream EUS (v.8.8)
Advisory URL: https://access.redhat.com/errata/RHSA-2024:1415
Issue date: 2024-03-19
CVE Names: CVE-2019-14560 CVE-2023-3446 CVE-2023-45230 CVE-2023-45234
=====================================================================
1. Summary:
An update for edk2 is now available for Red Hat Enterprise Linux 8.8 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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux AppStream EUS (v.8.8) - 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: Buffer overflow in the DHCPv6 client via a long Server ID option
(CVE-2023-45230)
* edk2: Function GetEfiGlobalVariable2() return value not checked in
DxeImageVerificationHandler() (CVE-2019-14560)
* openssl: Excessive time spent checking DH keys and parameters (CVE-2023-3446)
* edk2: Buffer overflow when processing DNS Servers option in a DHCPv6 Advertise
message (CVE-2023-45234)
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/):
1858038 - CVE-2019-14560 - edk2: Function GetEfiGlobalVariable2() return value
not checked in DxeImageVerificationHandler()
2224962 - CVE-2023-3446 - openssl: Excessive time spent checking DH keys and
parameters
2258685 - CVE-2023-45230 - edk2: Buffer overflow in the DHCPv6 client via a long
Server ID option
2258697 - CVE-2023-45234 - edk2: Buffer overflow when processing DNS Servers
option in a DHCPv6 Advertise message
6. Package List:
Red Hat Enterprise Linux AppStream EUS (v.8.8)
Source:
edk2-0:20220126gitbb1bba3d77-4.el8_8.3.src.rpm
noarch:
edk2-aarch64-0:20220126gitbb1bba3d77-4.el8_8.3.noarch.rpm
edk2-ovmf-0:20220126gitbb1bba3d77-4.el8_8.3.noarch.rpm
7. References:
https://access.redhat.com/security/cve/CVE-2019-14560
https://access.redhat.com/security/cve/CVE-2023-3446
https://access.redhat.com/security/cve/CVE-2023-45230
https://access.redhat.com/security/cve/CVE-2023-45234
https://access.redhat.com/security/updates/classification/#important
- --------------------------END INCLUDED TEXT----------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
https://www.auscert.org.au/bulletins/
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================