USN-5092-3 linux-azure, linux-azure-5.11 regression

USN-5092-2 fixed vulnerabilities in Linux 5.11-based kernels. Unfortunately, for Linux kernels intended for use within Microsoft Azure environments, that update introduced a regression that could cause the kernel to fail to boot in large Azure instance types. This update fixes the problem. We...

coreos-installer: restrict access permissions on /boot/ignition{,/config.ign}

A flaw was found in the coreos-installer, where it writes the Ignition config to the target system with world-readable access permissions. This flaw allows a local attacker to have read access to potentially sensitive data. The highest threat from this vulnerability is to confidentiality...

SpringBootVulExploit

This repository is an offensive tool for Spring Boot exploitation, specifically targeting various vulnerabilities in Spring Boot applications. The primary vulnerability being targeted is a deserialization vulnerability in the Spring Boot framework, which can lead to remote code execution RCE. The...

USN-5091-3 linux-azure, linux-azure-5.4 regression

USN-5091-1 fixed vulnerabilities in Linux 5.4-based kernels. Unfortunately, for Linux kernels intended for use within Microsoft Azure environments, that update introduced a regression that could cause the kernel to fail to boot in large Azure instance types. This update fixes the problem. We...

How to fix iPhone boot loop and iPhone black screen by yourself

By Owais Sultan iPhone boot loop has become more prominent following the recent iOS upgrades. Worse, you might even experience an iPhone black screen. This is a post from HackRead.com Read the original post: How to fix iPhone boot loop and iPhone black screen by yourself...

SUSE-SU-2021:3388-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 12 SP5 kernel was updated. The following security bugs were fixed: - CVE-2020-3702: Fixed a bug which could be triggered with specifically timed and handcrafted traffic and cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a...

Huawei EulerOS: Security Advisory for grub2 (EulerOS-SA-2020-2574)

The remote host is missing an update for the Huawei EulerOS SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

SpringBootVulExploit

This repository is an offensive tool for Spring Boot exploitation. It contains various modules and scripts that can be used to exploit vulnerabilities in Spring Boot applications. The primary vulnerability being targeted is a deserialization vulnerability in the Spring Boot framework, which can b...

CVE-2021-20600

Uncontrolled resource consumption in Mitsubishi Electric MELSEC iQ-R series C Controller Module R12CCPU-V Firmware Versions "16" and prior allows a remote unauthenticated attacker to cause a denial-of-service DoS condition by sending a large number of packets in a short time while the module...

Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-5106-1)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-5106-1 advisory. Valentina Palmiotti discovered that the iouring subsystem in the Linux kernel could be coerced to free adjacent memory. A local attacker could use this t...

ESPecter Bootkit Malware Haunts Victims with Persistent Espionage

A rare Windows UEFI bootkit malware has been discovered, offering attackers a path to cyber-espionage, researchers are warning. According to ESET, the bootkit’s goal is to install a full featured backdoor on a target PC, which “supports a rich set of commands and contains various automatic data...

Samsung SMR 代码问题漏洞

Samsung SMR is a system patch package from Samsung South Korea. It provides patches for Samsung mobile applications. A security vulnerability exists in versions prior to Samsung SMR Oct-2021 Release 1, which originates from a mishandling of the Exynos CP boot driver and allows local attackers to...

Researchers Discover UEFI Bootkit Targeting Windows Computers Since 2012

Cybersecurity researchers on Tuesday revealed details of a previously undocumented UEFI Unified Extensible Firmware Interface bootkit that has been put to use by threat actors to backdoor Windows systems as early as 2012 by modifying a legitimate Windows Boot Manager binary to achieve persistence...

grub2 bug fix and enhancement update

An update for grub2 is now available for Rocky Linux 8. The grub2 packages provide version 2 of the Grand Unified Boot Loader GRUB, a highly configurable and customizable boot loader with modular architecture. The packages support a variety of kernel formats, file systems, computer architectures,...

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...

Moderate: Red Hat Security Advisory: shim and fwupd security update

An update for fwupd, shim, shim-unsigned-aarch64, and shim-unsigned-x64 is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which...

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: 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: 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: 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...