Astra Linux – Vulnerability in libvirt

A flaw was discovered in libvirt during its generation of SELinux MCS category pairs for virtual machines’ dynamic labels. This flaw allows one exploited guest to access files labeled for another guest, resulting in the breach of sVirt confinement. The greatest threat posed by this vulnerability...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: KVM: Initialize gfntopfncache locks in dedicated helper Move the gfntopfncache lock initialization to another helper and call the new helper during VM/vCPU creation. There are race conditions possible due to kvmgfntopfncacheinit’...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: In mm: hugememory, there was a issue where the function mappinglargefoliosupport was misused for anonymous folios. When I conducted a split test involving large folios, a warning was triggered: “5059.122759T166 Cannot split file...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/xe/vm: moved xesvminit earlier. In xevmcloseandput, we need to be able to call xesvmfini. However, during vm creation, we can call this function on the error path, before actually initializing the svm state. This leads to...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/panthor: Fixed handling of partial GPU mapping of BOs This commit fixes the bug in handling partial mapping of buffer objects to the GPU, which caused kernel warnings. Panthor did not handle correctly the case where the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm: Fixed an object leak in the VMBIND error path. If we fail to perform the handle-lookup operation halfway through, we need to discard the already obtained object references. Patchwork:...

Astra Linux – Vulnerability in open-vm-tools

A malicious actor who has been granted “Guest Operation Privileges” https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html can potentially elevate their privileges if the target virtual machine has been assigned a more privileged “Guest Alias...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: mm: Fix unexpected zeroed page mapping with zram swap In cases where two processes are cloning under CLONEVM, a user process may be corrupted when zeroed pages are unexpectedly displayed. CPU A | CPU B --- | --- doswappage |...

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: drm/lima: fixed a memory leak in limaheapalloc. When limavmmapbo fails, the resources need to be deallocated; otherwise, memory leaks will occur...

Astra Linux – Vulnerability in Firefox and Thunderbird

The WebGL DrawElementsInstanced method was vulnerable to a heap buffer overflow when used on systems with the Mesa VM driver. This issue could allow an attacker to perform remote code execution and sandbox escape. This vulnerability affects Firefox ESR 115.6, Thunderbird 115.6, and Firefox 121...

Astra Linux – Vulnerability in Linux 5.10, Linux

Several Linux PV device frontends are vulnerable to attacks by backends that use grant table interfaces to remove access rights in a way that is subject to race conditions. This can lead to potential data leaks, data corruption by malicious backends, and denial of service attacks. The blkfront,...

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: KVM: Always flush the async PF workqueue when a vCPU is being destroyed. Whenever a vCPU clears its completion queue, i.e., when a VM and all its vCPUs are being destroyed, the async PF workqueue must always be flushed. KVM must...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/amdgpu: Fixed a use-after-free issue with the amdgpubolist mutex. If amdgpucsvmhandling returns a value other than 0, it will unlock the bolistmutex within the amdgpucsvmhandling function, and again in amdgpucsparserfini...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fixed an out-of-bounds shift in CalculateVMAndRowBytes. REASON When PTEBufferSizeInRequests is zero, UBSAN reports the following warning because dmllog2 returns an unexpected negative value: The shift exponent...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/xe: Fixed the double-free bug in vmbindioctl If the argument check during an array bind fails, the bindops is freed twice. This issue is fixed by setting bindops to NULL after freeing it...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: vfio/type1: prevents underflow of lockedvm via exec When a vfio container is preserved during execution, the task does not change. Instead, a new memory page is allocated with lockedvm=0, and the counter from existing DMA mapping...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/xe: Do not allow eviction of BOs within the same VM in an array of VM binds An array of VM binds may potentially evict other buffer objects BOs within the same VM under certain conditions, which could lead to NULL pointer...

Astra Linux – Vulnerability in open-vm-tools

A issue was discovered in open-vm-tools 2009.03.18-154848. Local users can bypass the intended access restrictions on mounting shares through a symlink attack that exploits a realpath race condition in mount.vmhgfs also known as hgfsmounter...

Astra Linux – Vulnerability in open-vm-tools

open-vm-tools contains a file descriptor hijacking vulnerability in the vmware-user-suid-wrapper. A malicious actor with non-root privileges may be able to hijack the /dev/uinput file descriptor, allowing them to simulate user inputs...

Astra Linux – Vulnerability in openjdk-11

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition products of Oracle Java SE component: Security. The supported versions affected by this vulnerability are Oracle Java SE: 8u391, 8u391-perf, 11.0.21, 17.0.9, 21.0.1; Oracle GraalVM for JDK: 17.0.9,...