UBUNTU-CVE-2023-34327

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. AMD CPUs since 2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of...

SUSE CVE-2023-34327

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. AMD CPUs since 2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of...

SUSE CVE-2023-34328

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. AMD CPUs since 2014 have extensions to normal x86 debugging functionality. Xen supports guests using these extensions. Unfortunately there are errors in Xen's handling of...

SUSE CVE-2008-1669

Linux kernel before 2.6.25.2 does not apply a certain protection mechanism for fcntl functionality, which allows local users to 1 execute code in parallel or 2 exploit a race condition to obtain "re-ordered access to the descriptor table."...

SUSE CVE-2008-4410

The vmiwriteldtentry function in arch/x86/kernel/vmi32.c in the Virtual Machine Interface VMI in the Linux kernel 2.6.26.5 invokes writeidtentry where writeldtentry was intended, which allows local users to cause a denial of service persistent application failure via crafted function calls, relat...

SUSE CVE-2014-9090

The dodoublefault function in arch/x86/kernel/traps.c in the Linux kernel through 3.17.4 does not properly handle faults associated with the Stack Segment SS segment register, which allows local users to cause a denial of service panic via a modifyldt system call, as demonstrated by sigreturn32 i...

SUSE CVE-2018-10901

A flaw was found in Linux kernel's KVM virtualization subsystem. The VMX code does not restore the GDT.LIMIT to the previous host value, but instead sets it to 64KB. With a corrupted GDT limit a host's userspace code has an ability to place malicious entries in the GDT, particularly to the per-cp...

SUSE CVE-2019-13233

In arch/x86/lib/insn-eval.c in the Linux kernel before 5.1.9, there is a use-after-free for access to an LDT entry because of a race condition between modifyldt and a BR exception for an MPX bounds violation...

SUSE CVE-2019-18425

An issue was discovered in Xen through 4.12.x allowing 32-bit PV guest OS users to gain guest OS privileges by installing and using descriptors. There is missing descriptor table limit checking in x86 PV emulation. When emulating certain PV guest operations, descriptor table accesses are performe...

CVE-2021-36710

ToaruOS 1.99.2 is affected by incorrect access control via the kernel. Improper MMU management and having a low GDT address allows it to be mapped in userland. A call gate can then be written to escalate to CPL 0...

PT-2022-10535 · Toaruos · Toaruos

Name of the Vulnerable Software and Affected Versions: ToaruOS version 1.99.2 Description: The issue is related to incorrect access control via the kernel, specifically due to improper MMU management and a low GDT address that allows it to be mapped in userland. This can be exploited by writing a...

SUSE: Security Advisory (SUSE-SU-2017:2873-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...

The vulnerability of Xen hypervisors relates to the insecure management of privileges, which allows attackers to gain access to confidential data, compromise its integrity, and cause service failures.

The vulnerability of Xen hypervisors is related to an emulation error in PV x86, where there is no check for the limit on the descriptor table. Exploiting this vulnerability can allow a remote attacker to access confidential data, compromise its integrity, and cause service failures...

kernel: use-after-free in arch/x86/lib/insn-eval.c

A vulnerability was found in the arch/x86/lib/insn-eval.c function in the Linux kernel. An attacker could corrupt the memory due to a flaw in use-after-free access to an LDT entry caused by a race condition between modifyldt and a BR exception for an MPX bounds violation...

Updated xen packages fix security vulnerability

- Updated from 4.12.0 to 4.12.1 - Device quarantine for alternate pci assignment methods XSA-306 - x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 - TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 - VCPUOPinitialise DoS XSA-296, CVE-2019-18420...

SUSE SLES12 Security Update : xen (SUSE-SU-2020:0334-1)

This update for xen fixes the following issues : CVE-2020-7211: potential directory traversal using relative paths via tftp server on Windows host bsc1161181. CVE-2019-19579: Device quarantine for alternate pci assignment methods bsc1157888. CVE-2019-19581: findnextbit issues bsc1158003...

kernel: kvm: guest userspace to guest kernel write

A flaw was found in the way Linux kernel KVM hypervisor emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilegeCPL level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside...

Fedora 30 : xen (2019-cbb732f760)

add missing XSA-299 patches x86: Machine Check Error on Page Size Change DoS XSA-304, CVE-2018-12207 TSX Asynchronous Abort speculative side channel XSA-305, CVE-2019-11135 ---- VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298,...

Fedora 29 : xen (2019-865bb16900)

VCPUOPinitialise DoS XSA-296, CVE-2019-18420 missing descriptor table limit checking in x86 PV emulation XSA-298, CVE-2019-18425 Issues with restartable PV type change operations XSA-299, CVE-2019-18421 1767726 add-to-physmap can be abused to DoS Arm hosts XSA-301, CVE-2019-18423 passed through P...