Last summer, the GRUB bootloader was impacted by "BootHole" with security issues hitting its UEFI Secure Boot support. Now a new round of GRUB2 vulnerabilities affecting its UEFI Secure Boot support have been made public. . A new set of GRUB2 security vulnerabilities were made public today affecting its UEFI Secure Boot support. A set of eight CVEs were issued in 2020 and this year for the new issues. The issues include the possibility of specially crafted ACPI tables being loaded even if Secure Boot is active, memory corruption in GRUB's menu rendering, use-after-free in rmmod functionality, the cutmem command allowing privileged users to disable certain memory regions and in turn Secure Boot protections, arbitrary code execution even if Secure Boot is enabled, GRUB 2.05 accidentally re-introducing one of last year's vulnerabilities, and memory corruption from crafted USB device descriptors that could lead to arbitrary code execution. The link for this article located at Phoronix is no longer available. . Recent GRUB2 flaws unveil potential UEFI Secure Boot complications that jeopardize device safety. Discover further details.. GRUB Bootloader, UEFI Security, Boot Protection, Code Execution. . Brittany Day
While most attention today is placed on containing complex malware and outside hacking threats, enterprises could significantly improve their risk posture by taking a look at how well they manage the access they give privileged insiders, such as network and database administrators and other IT professionals. What most organizations find is that they don't have a firm enough grip on the access these users have.. To keep sensitive information safe and to maintain regulatory compliance, it's crucial that privileged insider access be properly managed. The link for this article located at CSO Online is no longer available. . To keep sensitive information safe and to maintain regulatory compliance, it's crucial that privileg. while, attention, today, placed, containing, complex, malware, outside, hacking, threats. . LinuxSecurity.com Team
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