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ALSA-2023:2165 — Important: edk2 security, bug fix, and enhancement update

Affected: AlmaLinux:9: edk2-aarch64, AlmaLinux:9: edk2-ovmf, AlmaLinux:9: edk2-tools, AlmaLinux:9: edk2-tools-doc

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) * edk2: integer underflow in SmmEntryPoint function leads to potential SMM privilege escalation (CVE-2021-38578) * openssl: timing attack in RSA Decryption implementation (CVE-2022-4304) * openssl: double free after calling PEM_read_bio_ex (CVE-2022-4450) * 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.

Additional Changes:

For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

bdu:2023-03835

certfr-2023-avi-0733 — De multiples vulnérabilités ont été découvertes dans les produits Siemens. Certaines d'entr…

certfr-2023-avi-0733

cnvd-2022-23460

EUVD-2026-257644

fkie_cve-2021-38578

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

GHSA-grqq-3jqg-g95p

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

gsd-2021-38578

ICSA-23-257-04 — Siemens RUGGEDCOM APE1808 Products

An attacker with local access to the system could potentially disclose information from protected memory areas via a side-channel attack on the processor cache. Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. IHISI function 0x17 verifies that the output buffer lies within the command buffer but does not verify that output data does not go beyond the end of the command buffer. In particular, the GetFlashTable function is called directly on the Command Buffer before the DataSize is check, leading to possible circumstances where the data immediately following the command buffer could be destroyed before returning a buffer size error. Using SPI injection, it is possible to modify the FDM contents after it has been measured. This TOCTOU attack could be used to alter data and code used by the remainder of the boot process. Some versions of InsydeH2O use the FreeType tools to embed fonts into the BIOS. InsydeH2O does not use the FreeType API at runtime and usage during build time does not produce a vulnerability in the BIOS. The CVSS reflects this limited usage. In UsbCoreDxe, untrusted input may allow SMRAM or OS memory tampering Use of untrusted pointers could allow OS or SMRAM memory tampering leading to escalation of privileges. This issue was discovered by Insyde during security review. https://www.insyde.com/security-pledge/SA-2022058 In UsbCor…

msrc_CVE-2021-38578 — Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

msrc_CVE-2021-38578

OESA-2022-2122 — edk2 security update

Affected: openEuler:20.03-LTS-SP1: edk2, openEuler:20.03-LTS-SP3: edk2, openEuler:22.03-LTS: edk2

EDK II is a modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications. Security Fix(es): Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.(CVE-2021-38578)

openSUSE-SU-2024:12542-1 — ovmf-202211-1.1 on GA media

ovmf-202211-1.1 on GA media

SUSE-SU-2023:1921-1 — Security update for ovmf

Security update for ovmf

UBUNTU-CVE-2021-38578

Affected: Ubuntu:Pro:16.04:LTS: edk2, Ubuntu:Pro:18.04:LTS: edk2, Ubuntu:20.04:LTS: edk2, Ubuntu:22.04:LTS: edk2

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

WID-SEC-W-2023-1315 — Dell PowerEdge: Schwachstelle ermöglicht Erlangen von Administratorrechten

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Dell PowerEdge ausnutzen, um Administratorrechte zu erlangen.