Headline
RHSA-2023:4128: Red Hat Security Advisory: edk2 security update
An update for edk2 is now available for Red Hat Enterprise Linux 8.6 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.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.
Related CVEs:
- CVE-2022-4304: A timing-based side channel exists in the OpenSSL RSA Decryption implementation, which could be sufficient to recover a ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption, an attacker would have to be able to send a very large number of trial messages for decryption. This issue affects all RSA padding modes: PKCS#1 v1.5, RSA-OEAP, and RSASVE.
- CVE-2023-0215: A use-after-free vulnerability was found in OpenSSL’s BIO_new_NDEF function. The public API function BIO_new_NDEF is a helper function used for streaming ASN.1 data via a BIO. It is primarily used internally by OpenSSL to support the SMIME, CMS, and PKCS7 streaming capabilities, but it may also be called directly by end-user applications. The function receives a BIO from the caller, prepends a new BIO_f_asn1 filter BIO onto the front of it to form a BIO chain, and then returns the new head of the BIO chain to the caller. Under certain conditions. For example, if a CMS recipient public key is invalid, the new filter BIO is freed, and the function returns a NULL result indicating a failure. However, in this case, the BIO chain is not properly cleaned up, and the BIO passed by the caller still retains internal pointers to the previously freed filter BIO. If the caller then calls BIO_pop() on the BIO, a use-after-free will occur, possibly resulting in a crash.
- CVE-2023-0286: A type confusion vulnerability was found in OpenSSL when OpenSSL X.400 addresses processing inside an X.509 GeneralName. When CRL checking is enabled (for example, the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or cause a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, of which neither needs a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. In this case, this vulnerability is likely only to affect applications that have implemented their own functionality for retrieving CRLs over a network.
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Issued:
2023-07-18
Updated:
2023-07-18
RHSA-2023:4128 - Security Advisory
- Overview
- Updated Packages
Synopsis
Important: edk2 security update
Type/Severity
Security Advisory: Important
Red Hat Insights patch analysis
Identify and remediate systems affected by this advisory.
View affected systems
Topic
An update for edk2 is now available for Red Hat Enterprise Linux 8.6 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.
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):
- openssl: X.400 address type confusion in X.509 GeneralName (CVE-2023-0286)
- openssl: timing attack in RSA Decryption implementation (CVE-2022-4304)
- openssl: use-after-free following BIO_new_NDEF (CVE-2023-0215)
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.
Affected Products
- Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6 x86_64
- Red Hat Enterprise Linux Server - AUS 8.6 x86_64
- Red Hat Enterprise Linux Server - TUS 8.6 x86_64
- Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6 aarch64
- Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6 x86_64
Fixes
- BZ - 2164440 - CVE-2023-0286 openssl: X.400 address type confusion in X.509 GeneralName
- BZ - 2164487 - CVE-2022-4304 openssl: timing attack in RSA Decryption implementation
- BZ - 2164492 - CVE-2023-0215 openssl: use-after-free following BIO_new_NDEF
Red Hat Enterprise Linux for x86_64 - Extended Update Support 8.6
SRPM
edk2-20220126gitbb1bba3d77-2.el8_6.1.src.rpm
SHA-256: c97037ce73d2b96d31e9225f42998a46f76140d943acf3e80fe1038365242b2b
x86_64
edk2-ovmf-20220126gitbb1bba3d77-2.el8_6.1.noarch.rpm
SHA-256: 554b8473e0ede8f4013d4be60e875e0c45160944e3a9a3b062bff04a780a88ef
Red Hat Enterprise Linux Server - AUS 8.6
SRPM
edk2-20220126gitbb1bba3d77-2.el8_6.1.src.rpm
SHA-256: c97037ce73d2b96d31e9225f42998a46f76140d943acf3e80fe1038365242b2b
x86_64
edk2-ovmf-20220126gitbb1bba3d77-2.el8_6.1.noarch.rpm
SHA-256: 554b8473e0ede8f4013d4be60e875e0c45160944e3a9a3b062bff04a780a88ef
Red Hat Enterprise Linux Server - TUS 8.6
SRPM
edk2-20220126gitbb1bba3d77-2.el8_6.1.src.rpm
SHA-256: c97037ce73d2b96d31e9225f42998a46f76140d943acf3e80fe1038365242b2b
x86_64
edk2-ovmf-20220126gitbb1bba3d77-2.el8_6.1.noarch.rpm
SHA-256: 554b8473e0ede8f4013d4be60e875e0c45160944e3a9a3b062bff04a780a88ef
Red Hat Enterprise Linux for ARM 64 - Extended Update Support 8.6
SRPM
edk2-20220126gitbb1bba3d77-2.el8_6.1.src.rpm
SHA-256: c97037ce73d2b96d31e9225f42998a46f76140d943acf3e80fe1038365242b2b
aarch64
edk2-aarch64-20220126gitbb1bba3d77-2.el8_6.1.noarch.rpm
SHA-256: ba4ebcb44ceaa85258c493ced00894ef0ed3f12bf0f740412f507fa31cf0daf8
Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 8.6
SRPM
edk2-20220126gitbb1bba3d77-2.el8_6.1.src.rpm
SHA-256: c97037ce73d2b96d31e9225f42998a46f76140d943acf3e80fe1038365242b2b
x86_64
edk2-ovmf-20220126gitbb1bba3d77-2.el8_6.1.noarch.rpm
SHA-256: 554b8473e0ede8f4013d4be60e875e0c45160944e3a9a3b062bff04a780a88ef
The Red Hat security contact is [email protected]. More contact details at https://access.redhat.com/security/team/contact/.
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