CVE-2021-28693

xen/arm: Boot modules are not scrubbed The bootloader will load boot modules e.g. kernel, initramfs... in a temporary area before they are copied by Xen to each domain memory. To ensure sensitive data is not leaked from the modules, Xen must "scrub" them before handing the page over to the...

CVE-2021-34380

Bootloader contains a vulnerability in NVIDIA MB2 where potential heap overflow might cause corruption of the heap metadata, which might lead to arbitrary code execution, denial of service, and information disclosure during secure boot...

EulerOS Virtualization for ARM 64 3.0.6.0 : grub2 (EulerOS-SA-2021-2001)

According to the versions of the grub2 packages installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerabilities : - A flaw was found in grub2 in versions prior to 2.06. Setparamprefix in the menu rendering code performs a length...

grub2: cutmem command allows privileged user to remove memory regions when Secure Boot is enabled

A flaw was found in grub2. The cutmem command does not honor secure boot locking allowing an privileged attacker to remove address ranges from memory creating an opportunity to circumvent SecureBoot protections after proper triage about grub's memory layout. The highest threat from this...

grub2: Out-of-bounds write in grub_usb_device_initialize()

A flaw was found in grub2. During USB device initialization, descriptors are read with very little bounds checking and assumes the USB device is providing sane values. If properly exploited, an attacker could trigger memory corruption leading to arbitrary code execution allowing a bypass of the...

grub2: Use-after-free in rmmod command

A flaw was found in grub2. The rmmod implementation allows the unloading of a module used as a dependency without checking if any other dependent module is still loaded leading to a use-after-free scenario. This could allow arbitrary code to be executed or a bypass of Secure Boot protections. The...

grub2: acpi command allows privileged user to load crafted ACPI tables when Secure Boot is enabled

A flaw was found in GRUB 2, where it incorrectly enables the usage of the ACPI command when Secure Boot is enabled. This flaw allows an attacker with privileged access to craft a Secondary System Description Table SSDT containing code to overwrite the Linux kernel lockdown variable content direct...

grub2: Stack buffer overflow in grub_parser_split_cmdline()

A flaw was found in grub2. Variable names present are expanded in the supplied command line into their corresponding variable contents, using a 1kB stack buffer for temporary storage, without sufficient bounds checking. If the function is called with a command line that references a variable with...

kernel: security bypass in certs/blacklist.c and certs/system_keyring.c

A flaw was found in the Linux kernel in certs/blacklist.c, When signature entries for EFICERTX509GUID are contained in the Secure Boot Forbidden Signature Database, the entries are skipped. This can cause a security threat and breach system integrity, confidentiality and even lead to a denial of...

kernel: security bypass in certs/blacklist.c and certs/system_keyring.c

A flaw was found in the Linux kernel in certs/blacklist.c, When signature entries for EFICERTX509GUID are contained in the Secure Boot Forbidden Signature Database, the entries are skipped. This can cause a security threat and breach system integrity, confidentiality and even lead to a denial of...

systemd bug fix and enhancement update

The systemd packages contain systemd, a system and service manager for Linux, compatible with the SysV and LSB init scripts. It provides aggressive parallelism capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, and keeps track of processes...

fwupd security update

An update is available for fwupd. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The fwupd packages provide a service that allows session software to update...

JetLinks open source IoT platform suffers from weak password vulnerability

JetLinks open source Internet of Things platform based on Java8, Spring Boot 2.x, WebFlux, Netty, Vert.x, Reactor and other development , is an out-of-the-box , secondary development of enterprise-class Internet of Things infrastructure platform . JetLinks open source IoT platform has a weak...

RHEL 8 : fwupd (RHSA-2021:2566)

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2021:2566 advisory. The fwupd packages provide a service that allows session software to update device firmware. Security Fixes: grub2: acpi command allows...

GSD-2021-1000821 x86/kvm: Teardown PV features on boot CPU as well

x86/kvm: Teardown PV features on boot CPU as well This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.10 by commit...

UVI-2021-1000821 x86/kvm: Teardown PV features on boot CPU as well

x86/kvm: Teardown PV features on boot CPU as well This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.10 by commit...

GSD-2021-1000785 x86/kvm: Teardown PV features on boot CPU as well

x86/kvm: Teardown PV features on boot CPU as well This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.43 by commit...

UVI-2021-1000758 x86/kvm: Teardown PV features on boot CPU as well

x86/kvm: Teardown PV features on boot CPU as well This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.125 by commit...

GSD-2021-1000758 x86/kvm: Teardown PV features on boot CPU as well

x86/kvm: Teardown PV features on boot CPU as well This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.125 by commit...

CVE-2021-21571

Dell UEFI BIOS https stack leveraged by the Dell BIOSConnect feature and Dell HTTPS Boot feature contains an improper certificate validation vulnerability. A remote unauthenticated attacker may exploit this vulnerability using a person-in-the-middle attack which may lead to a denial of service an...