CVE-2026-102916

A reachable assertion in the illumos bhyve instruction emulator allows a guest to panic the host. When emulating a REP-prefixed MOVS or STOS instruction that accesses guest MMIO, vieemulatemovs and vieemulatestos in usr/src/uts/intel/io/vmm/vmminstructionemul.c do not clear the VIESREPEAT status...

CVE-2026-102916 Reachable assertion in illumos bhyve REP string instruction emulation allows guest to panic host

A reachable assertion in the illumos bhyve instruction emulator allows a guest to panic the host. When emulating a REP-prefixed MOVS or STOS instruction that accesses guest MMIO, vieemulatemovs and vieemulatestos in usr/src/uts/intel/io/vmm/vmminstructionemul.c do not clear the VIESREPEAT status...

CVE-2026-102916

The illumos bhyve instruction emulator contains a reachable assertion vulnerability in the emulation of REP-prefixed MOVS and STOS instructions. Specifically, the functions vie_emulate_movs() and vie_emulate_stos() in usr/src/uts/intel/io/vmm/vmm_instruction_emul.c fail to clear the VIES_REPEAT s...

EUVD-2026-95796

A reachable assertion in the illumos bhyve instruction emulator allows a guest to panic the host. When emulating a REP-prefixed MOVS or STOS instruction that accesses guest MMIO, vieemulatemovs and vieemulatestos in usr/src/uts/intel/io/vmm/vmminstructionemul.c do not clear the VIESREPEAT status...

CVE-2022-49124: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: x86/mce: Work around an erratum on fast string copy instructions A rare kernel panic scenario can happen when the following conditions are met due to an erratum on fast string copy instructions: 1 An uncorrected error. 2 That err...

x86/Intel: Gather Data Sampling

ISSUE DESCRIPTION A researcher has discovered Gather Data Sampling, a transient execution side-channel whereby the AVX GATHER instructions can forward the content of stale vector registers to dependent instructions. The physical register file is a structure competitively shared between sibling...

SUSE CVE-2014-8867

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O MMIO emulated in the hypervisor, which allows local HVM guests to cause a denial of service host crash via unspecified vectors...

Denial Of Service (DoS)

The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the Linux kernel's Infiniband subsystem did not properly sanitize input parameters while registering memory regions from user space via the uverbs API. A local user with access to a...

Linux/ARM - execve (/bin/sh,NULL,0) Shellcode (31 bytes)

/ Title: Linux/ARM - execve"/bin/sh",NULL,0 - 31 bytes Date: 2010-08-31 Tested: ARM926EJ-S rev 5 v5l Author: Jonathan Salwan - twitter: @jonathansalwan shell-storm.org Shellcode ARM without 0x20, 0x0a and 0x00 00008054 : 8054: e28f3001 add r3, pc, 1 ; 0x1 8058: e12fff13 bx r3 805c: 4678 mov r0, p...

Microsoft Windows 2003 SP2 - ERRATICGOPHER SMB Remote Code Execution

Microsoft Windows 2003 SP2 - ERRATICGOPHER SMB Remote Code Execution !/usr/bin/env python -- coding: utf-8 -- By Victor Portal vportal for educational porpouse only This exploit is the python version of the ErraticGopher exploit probably with some modifications. ErraticGopher exploits a memory...

Microsoft Windows 2003 SP2 - 'ERRATICGOPHER' SMB Remote Code Execution

!/usr/bin/env python -- coding: utf-8 -- By Victor Portal vportal for educational porpouse only This exploit is the python version of the ErraticGopher exploit probably with some modifications. ErraticGopher exploits a memory corruption seems to be a Heap Overflow in the Windows DCE-RPC Call...

SUSE SLES11 Security Update : xen (SUSE-SU-2014:1732-1)

xen was updated to fix 10 security issues : - Guest effectable page reference leak in MMUMACHPHYSUPDATE handling CVE-2014-9030. - Insufficient bounding of 'REP MOVS' to MMIO emulated inside the hypervisor CVE-2014-8867. - Missing privilege level checks in x86 emulation of far branches...

Debian DSA-3140-1 : xen - security update

Multiple security issues have been discovered in the Xen virtualisation solution which may result in denial of service, information disclosure or privilege escalation. - CVE-2014-8594 Roger Pau Monne and Jan Beulich discovered that incomplete restrictions on MMU update hypercalls may result in...

DEBIAN-CVE-2014-8867

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O MMIO emulated in the hypervisor, which allows local HVM guests to cause a denial of service host crash via unspecified vectors...

UBUNTU-CVE-2014-8867

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O MMIO emulated in the hypervisor, which allows local HVM guests to cause a denial of service host crash via unspecified vectors...

CVE-2014-8867

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O MMIO emulated in the hypervisor, which allows local HVM guests to cause a denial of service host crash via unspecified vectors...

CVE-2014-8867

CVE-2014-8867 affects Xen hypervisor: acceleration support for REP MOVS in Xen 4.4.x, 3.2.x and earlier lacks proper bounds checking for MMIO in emulation, allowing a local HVM guest to trigger a host crash (DoS) via unspecified vectors. The connected Nessus/OracleVM advisories reference this CVE...

PT-2014-8741

Name of the Vulnerable Software and Affected Versions Xen versions 4.4.x, 3.2.x and earlier Description The issue is related to the acceleration support for the "REP MOVS" instruction, which lacks proper bounds checking for memory mapped I/O MMIO emulated in the hypervisor. This allows local HVM...

CVE-2014-8867: Undefined Security Weakness

The acceleration support for the "REP MOVS" instruction in Xen 4.4.x, 3.2.x, and earlier lacks properly bounds checking for memory mapped I/O MMIO emulated in the hypervisor, which allows local HVM guests to cause a denial of service host crash via unspecified vectors...

Insufficient bounding of "REP MOVS" to MMIO emulated inside the hypervisor

ISSUE DESCRIPTION Acceleration support for the "REP MOVS" instruction, when the first iteration accesses memory mapped I/O emulated internally in the hypervisor, incorrectly assumes that the whole range accessed is handled by the same hypervisor sub-component. IMPACT A buggy or malicious HVM gues...