#bios

Red Hat Security Advisory 2023-5239-01 - Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow, code execution, and denial of service vulnerabilities.

Red Hat Security Advisory 2023-5264-01 - Kernel-based Virtual Machine offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems. Issues addressed include buffer overflow, code execution, and denial of service vulnerabilities.

Red Hat Security Advisory 2023-5252-01 - The dmidecode packages provide utilities for extracting Intel 64 and Intel Itanium hardware information from the system BIOS or Extensible Firmware Interface, depending on the SMBIOS/DMI standard. This information typically includes system manufacturer, model name, serial number, BIOS version, and asset tag, as well as other details, depending on the manufacturer.

In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing the encrypted data located in the vault. As per the “measured boot” design, the PCR values calculated at different stages of the boot process will change if any of their respective parts are changed. This includes, among other things, the configuration of the bios, grub, the kernel cmdline, initrd, and more. However, this mechanism does not validate the entire rootfs, so an attacker can edit the filesystem and gain control over the system. As the default filesystem used by EVE OS is squashfs, this is somewhat harder than an ext4, which is easily changeable. This will not stop an attacker, as an attacker can repackage the squashfs with their changes in it and replace the partition altogether. This can also be done directly on the device, as the “003-storage-init” container contains the “mksquashfs” and “unsquashfs” binaries (with the corresponding libs). An attacker can gain full contro...

In EVE OS, the “measured boot” mechanism prevents a compromised device from accessing the encrypted data located in the vault. As per the “measured boot” design, the PCR values calculated at different stages of the boot process will change if any of their respective parts are changed. This includes, among other things, the configuration of the bios, grub, the kernel cmdline, initrd, and more. However, this mechanism does not validate the entire rootfs, so an attacker can edit the filesystem and gain control over the system. As the default filesystem used by EVE OS is squashfs, this is somewhat harder than an ext4, which is easily changeable. This will not stop an attacker, as an attacker can repackage the squashfs with their changes in it and replace the partition altogether. This can also be done directly on the device, as the “003-storage-init” container contains the “mksquashfs” and “unsquashfs” binaries (with the corresponding libs). An attacker can gain full contro...

An update for the virt:rhel and virt-devel:rhel modules 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.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-2022-40284: A buffer overflow flaw was found in NTFS-3G. This issue occurs via a crafted metadata in an NTFS image that can cause code execution. A local attacker can exploit this issue if the NTFS-3G binary is setuid root. A physically proximate attacker can exploit this issue if the NTFS-3G software is configured to exec...

An update for dmidecode 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.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-2023-30630: A vulnerability was found dmidecode, which allows -dump-bin to overwrite a local file. This issue may lead to the execution of dmidecode via Sudo.

An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions. 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-2022-40284: A buffer overflow flaw was found in NTFS-3G. This issue occurs via a crafted metadata in an NTFS image that can cause code execution. A local attacker can exploit this issue if the NTFS-3G binary is setuid root. A physically proximate attacker can exploit this issue if the NT...

Dell PowerEdge BIOS and Dell Precision BIOS contain a buffer overflow vulnerability. A local malicious user with high privileges could potentially exploit this vulnerability, leading to corrupt memory and potentially escalate privileges.  

As of January 10, 2023, CISA will no longer be updating ICS security advisories for Siemens product vulnerabilities beyond the initial advisory. For the most up-to-date information on vulnerabilities in this advisory, please see Siemens' ProductCERT Security Advisories (CERT Services | Services | Siemens Global).  View CSAF 1. EXECUTIVE SUMMARY CVSS v3 8.2 ATTENTION: Low Attack Complexity Vendor: Siemens Equipment: RUGGEDCOM APE1808 Product Family Vulnerabilities: Exposure of Sensitive Information to an Unauthorized Actor, Buffer Underflow, Classic Buffer Overflow, Time-of-check Time-of-use Race Condition, Out-of-bounds Read, Improper Restriction of Operations within the Bounds of a Memory Buffer, Out-of-bounds Write, Improper Input Validation, Missing Release of Memory after Effective Lifetime, Improperly Implemented Security Check for Standard, Plaintext Storage of a Password 2. RISK EVALUATION Successful exploitation of these vulnerabilities on affected products could lead to inform...