CVE-2026-3842 Qemu-kvm: hyperv/syndbg: missing mapped-length guard after cpu_physical_memory_map causes host oob write

A flaw was found in QEMU. This vulnerability allows a local attacker within a guest virtual machine to write data beyond its allocated memory. This occurs when cpuphysicalmemorymap returns a shorter length than expected, leading to an out-of-bounds write. Successful exploitation could result in...

Astra Linux – Vulnerability in Qemu

A flaw was discovered in the implementation of the QEMU virtio-fs shared file system daemon virtiofsd. This flaw is strictly related to CVE-2018-13405. A local guest user can create files in directories shared by virtio-fs, with unintended group ownership. This occurs in a scenario where a...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001882)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001882 advisory. The PCI backend driver in Xen, when running on an x86 system and using Linux 3.1.x through 4.3.x as the driver domain, allows local guest administrators to generate ...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002681)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002681 advisory. The xenbiovecphysmergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-002283)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-002283 advisory. Xen 3.3.x through 4.5.x and the Linux kernel through 3.19.1 do not properly restrict access to PCI command registers, which might allow local guest OS users to cause...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-003348)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-003348 advisory. The xenbiovecphysmergeable function in drivers/xen/biomerge.c in Xen might allow local OS guest users to corrupt block device data streams and consequently obtain...

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