Astra Linux – Vulnerability in Linux

A issue was discovered in Linux: improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks and cause pages to be freed while still accessible by the VMM and guest. This allows users who have the ability to start and control a VM to read/write random pages of memory, potentially leading ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: util: Avoid accessing a ringbuffer that is not initialized yet. If the KVP or VSS daemon starts before the VMBus channel’s ringbuffer is fully initialized, we can encounter a panic as follows: hvutils: Registering th...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in QEMU. If the QIOChannelWebsock object is freed while it is waiting to complete a handshake, a GSource is leaked. This can result in the callback being fired later, thereby causing a use-after-free when using the channel. This vulnerability can be exploited by a malicious...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: s390: pv: fix index value of replaced ASCE The index field of the struct page corresponding to a guest ASCE should be 0. When replacing the ASCE in s390replaceasce, the index of the new ASCE should also be set to 0. Using th...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QEMU virtual crypto device during handling of data encryption/decryption requests in virtiocryptohandlesymreq. There is no check for the values of srclen and dstlen in virtiocryptosymophelper, which may lead to a heap buffer overflow if these values differ...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QEMU implementation of VMWare’s paravirtual RDMA device. The issue arises when handling the “PVRDMACMDCREATEMR” command due to improper memory remapping mremap. This flaw allows a malicious guest to crash the QEMU process on the host. The greatest threat posed by this...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: ipvs: fixed an warning in ipvsappnetcleanup. During the initialization of ipvsappnetinit, if the file ipvsapp cannot be created, the initialization will still succeed by default. Therefore, the ipvsapp file will not be found duri...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: i40e: Fixed queue reservation for XDP When XDP was configured on a system with a large number of CPUs and X722 NIC, there was a call trace involving a NULL pointer dereference. i40e 0000:87:00.0: Failed to obtain tracking for...

Astra Linux – Vulnerability in Vim

Vim is an open-source command-line text editor. From version 9.2.0320 to 9.2.0679, a crafted undo or swap file could store a virtual-text property whose offset and length points outside the line’s property data. When Vim restores or displays such a line, it converts the offset into a pointer and...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: hvnetvsc: Fixed a panic that occurred during namespace deletion with VF. The existing code moves the VF NIC to a new namespace when NETDEVREGISTER is received on the netvsc NIC. During the deletion of the namespace,...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: igb: Initialize the mailbox message for VF reset When a MAC address is not assigned to the VF, that portion of the message sent to the VF is not set. However, memory is allocated from the stack, which means that information may b...

Astra Linux – Vulnerability in Linux 5.10, Linux, Linux 5.15

A flaw was discovered in KVM. When calling the KVMGETDEBUGREGS ioctl on 32-bit systems, there might be uninitialized portions of the kvm Debugregs structure that could be copied into user space, resulting in an information leak...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftables: The hooks related to netdev are always released after the notifier is removed. This resolves the issue where, when a veth device is released, the veth release callback also queues the peer netns device for...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: Avoid corrupting the page-mapping in hugetlbmcopyatomicpte. In the MCOPYATOMICCONTINUE case with a non-shared VMA, the pages in the page cache are stored in the ptes. However, hugepageaddnewanonrmap is called for thes...

Astra Linux – Vulnerability in docker.io

Moby is an open-source container framework developed by Docker Inc., distributed as Docker, Mirantis Container Runtime, and various other downstream projects/products. The Moby daemon component, dockerd, which was originally developed as “moby/moby”, is commonly referred to as Docker. Swarm Mode ...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xen/gntdev: Accommodation for VMA splitting Prior to this commit, the gntdev driver code did not handle the following scenario correctly with paravirtualized PV Xen domains: The user process sets up a gntdev mapping consisting of...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: xhci: Device endpoints are removed from the bandwidth list when the device is freed. Endpoints are normally deleted from the bandwidth list when they are dropped, before the virt device is freed. If the xHCI host is dying or bein...

Astra Linux – Vulnerability in SQLite3

Before version 3.32.0, SQLite allowed a virtual table to be renamed to the name of one of its shadow tables, which are related to alter.c and build.c...

Astra Linux – Vulnerability in Linux

A flaw was discovered in the KVM’s AMD code, which handles SVM nested virtualization. The flaw occurs during the processing of the VMCB virtual machine control block provided by the L1 guest to spawn/handle a nested guest L2. Due to improper validation of the “virtext” field, this issue could all...

Astra Linux – Vulnerability in Chromium

In the Blink Serial API in Google Chrome, a memory access out of bounds was allowed before version 97.0.4692.71. This allowed a remote attacker to perform a memory read through a crafted HTML page and a virtual serial port driver...