rabbitmq-server: RabbitMQ: Denial of Service via AMQP 1.0 array32 parsing

A flaw was found in RabbitMQ. An unauthenticated network attacker can exploit an issue in the AMQP 1.0 listener by sending a specially crafted 19-byte frame. This causes the system to attempt to build a list of approximately 4 billion empty elements, exhausting heap memory and terminating the...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: uiohvgeneric: The issue of NULL pointer dereferencing in hvuiorescind has been fixed. For primary VM Bus channels, the primarychannel pointer is always NULL. This pointer is valid only for secondary channels. Additionally, the...

Astra Linux – Vulnerability in open-vm-tools

VMware Tools contains a vulnerability related to bypassing the SAML token signature. A malicious actor who has been granted “Guest Operation Privileges” can potentially elevate their privileges if the target virtual machine has been assigned a more privileged “Guest Alias”. source-iocs-preserved...

Astra Linux – Vulnerability in Qemu

QEMU 5.0.0 has a use-after-free issue in the hw/usb/hcd-xhci.c file, as the return value of usbpacketmap is not checked...

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 found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: KVM: Do not corrupt the irqfd routing entry when deassigning an irqfd When deassigning a KVMIRQFD, do not corrupt the irqfd’s copy of the IRQ routing entry. Doing so would break the kvmarchirqbypassdelproducer function on x86...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: KVM: Do not dereference ops-destroy directly. The cleanup of a KVM device occurs through either of two callbacks: 1 destroy, called when the VM is being destroyed; 2 release, called when a device file descriptor is closed. Most K...

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 6.1

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Do not retire an aborted MMIO instruction Returning an abort to the guest for an unsupported MMIO access is a documented feature of the KVM UAPI. However, it’s clear that this functionality has been tested limitedly, ...

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 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/tdx: Fixed a data leak in the mmioread function. The mmioread function calls a TDVMCALL to retrieve MMIO data for a specific address from the VMM. Sean noticed that mmioread inadvertently exposes the value of an initialized...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: x86/fpu: Clear XSTATEBVi in the guest XSAVE state whenever XFDi=1 When loading the guest XSAVE state via KVMSETXSAVE, and when updating XFD in response to a guest WRMSR, the disabled features in XSTATEBV are cleared to ensure tha...

Astra Linux – Vulnerability found in Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Platform/x86: ISST: Fixed the KASAN report “slab-out-of-bounds” bug. Attaching an SST PCI device to a virtual machine causes the issue “BUG: KASAN: slab-out-of-bounds”. Kasan report: 19.411889...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the QEMU-built-in VNC server during the processing of ClientCutText messages. A incorrect exit condition may lead to an infinite loop when inflating a zlib buffer controlled by an attacker in the inflatebuffer function. This could allow a remotely authenticated client, wh...

Astra Linux – Vulnerability in OpenVSwitch

A flaw was discovered in Open vSwitch, allowing ICMPv6 Neighbor Advertisement packets between virtual machines to bypass OpenFlow rules. This issue may enable a local attacker to create specially crafted packets with a modified or spoofed target IP address field, which can redirect ICMPv6 traffic...

Astra Linux – Vulnerability in Qemu

A use-after-free vulnerability was discovered in the QEMU LSI53C895A SCSI Host Bus Adapter emulation. This issue may cause a crash or a virtual machine to escape...

Astra Linux – Vulnerability in Qemu

It was found that the patch for CVE-2020-17380/CVE-2020-25085 is ineffective. As a result, QEMU becomes vulnerable to out-of-bounds read/write access issues that were previously identified in the SDHCI controller emulation code. This flaw allows a malicious privileged attacker to crash the QEMU...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Prevent RSB underflow before vmenter On VMX, there are some balanced returns between the time the guest’s SPECCTRL value is written and the vmenter. Balanced returns matched by a preceding call are usually fine. However...

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 Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: KVM: x86: Fixed a stack-out-of-bounds memory access from ioapicwriteindirect. KASAN reports the following issue: BUG: In kvmmakevcpusrequestmask+0x174/0x440 kvm, there is a stack-out-of-bounds situation. A read of size 8 at...