CVE-2021-47061

A flaw was found in the Linux kernel’s Kernel-based virtual machine KVM subsystem. A bug in the code destroys devices attached to I/O buses before the bus can be nullified. This issue causes use-after-free scenarios as readers may still reference the devices on their bus version...

DEBIAN-CVE-2021-47060

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvmiobusunregisterdev fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus,...

CVE-2021-47060

In the Linux kernel, the following vulnerability has been resolved: KVM: Stop looking for coalesced MMIO zones if the bus is destroyed Abort the walk of coalesced MMIO zones if kvmiobusunregisterdev fails to allocate memory for the new instance of the bus. If it can't instantiate a new bus,...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47061

CVE-2021-47061 : Concrete details in connected advisories show a Linux kernel/KVM issue where destroying an I/O bus device must occur after unregister, and after SRCU-synchronization. The root cause is a use-after-free risk if devices are destroyed before the bus is nullified, because readers exp...

CVE-2021-47061

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47061 KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU

In the Linux kernel, the following vulnerability has been resolved: KVM: Destroy I/O bus devices on unregister failure after sync'ing SRCU If allocating a new instance of an I/O bus fails when unregistering a device, wait to destroy the device until after all readers are guaranteed to see the new...

CVE-2021-47018

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space...

CVE-2021-47018

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space...

CVE-2021-47018

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space...

CVE-2021-47018 powerpc/64: Fix the definition of the fixmap area

In the Linux kernel, the following vulnerability has been resolved: powerpc/64: Fix the definition of the fixmap area At the time being, the fixmap area is defined at the top of the address space or just below KASAN. This definition is not valid for PPC64. For PPC64, use the top of the I/O space...

Ubuntu 20.04 LTS / 22.04 LTS / 23.10 : libuv vulnerability (USN-6666-1)

The remote Ubuntu 20.04 LTS / 22.04 LTS / 23.10 host has packages installed that are affected by a vulnerability as referenced in the USN-6666-1 advisory. It was discovered that libuv incorrectly truncated certain hostnames. A remote attacker could possibly use this issue with specially crafted...

China Surveillance Company Hacked

Last week, someone posted something like 570 files, images and chat logs from a Chinese company called I-Soon. I-Soon sells hacking and espionage services to Chinese national and local government. Lots of details in the news articles. These arent details about the tools or techniques, more the...

CVE-2024-27356

An issue was discovered on certain GL-iNet devices. Attackers can download files such as logs via commands, potentially obtaining critical user information. This affects MT6000 4.5.5, XE3000 4.4.4, X3000 4.4.5, MT3000 4.5.0, MT2500 4.5.0, AXT1800 4.5.0, AX1800 4.5.0, A1300 4.5.0, S200 4.1.4-0300,...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In epoll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDERWRITEREAD without a read buffer...

CVE-2024-26606 binder: signal epoll threads of self-work

In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In epoll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDERWRITEREAD without a read buffer...

CVE-2024-26606 binder: signal epoll threads of self-work

In the Linux kernel, the following vulnerability has been resolved: binder: signal epoll threads of self-work In epoll mode, threads often depend on I/O events to determine when data is ready for consumption. Within binder, a thread may initiate a command via BINDERWRITEREAD without a read buffer...

A week in security (February 19 – February 25)

Last week on Malwarebytes Labs: Joomla! patches XSS flaws that could lead to remote code execution Update now! ConnectWise ScreenConnect vulnerability needs your attention Why ransomware gangs love using RMM tools—and how to stop them Signal to shield user phone numbers by default Vibrator virus...