CVE-2016-9815

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service host panic by sending an asynchronous abort...

CVE-2016-9815

CVE-2016-9815 is described across multiple sources as affecting Xen up to version 4.7.x. The vulnerability allows a local ARM guest OS user to trigger a denial of service on the host by sending an asynchronous abort, resulting in a host panic. The available documents confirm the impact is a HOST-...

CVE-2016-9817

Xen through 4.7.x allows local ARM guest OS users to cause a denial of service host crash via vectors involving a 1 data or 2 prefetch abort with the ESREL2.EA bit set...

Shellcode Builder: Shell Factory

Shellcode Builder: Shell Factory Shell Factory is a framework for compiling shellcodes from a C++ source for multiple systems and architectures. It is composed of multiple parts: a Rakefile for compiling and linking against different compilers and architectures. the factory, a set of C++ headers ...

CVE-2017-5927

Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern ARM processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR...

Design/Logic Flaw

Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern ARM processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR...

CVE-2017-5927

CVE-2017-5927 affects ARM processors where page table walks by the MMU during virtual-to-physical address translation leave traces in the last-level cache. A side-channel attack via JavaScript can infer memory and code pointers, breaking ASLR. The linked SUSE entry and related coverage confirm th...

CVE-2017-5927

Page table walks conducted by the MMU during virtual to physical address translation leave a trace in the last level cache of modern ARM processors. By performing a side-channel attack on the MMU operations, it is possible to leak data and code pointers from JavaScript, breaking ASLR...

arm: memory corruption when freeing p2m pages

ISSUE DESCRIPTION When freeing pages used for stage-2 page tables, the freeing routine failed to remove these pages from an internally managed list they were put on during allocation. The same list node elements are also used by the hypervisor's page allocator. Subsequent manipulation of ARM's...

Debian DLA-833-1 : linux security update

Several vulnerabilities have been discovered in the Linux kernel that may lead to a privilege escalation, denial of service or have other impacts. CVE-2014-9888 Russell King found that on ARM systems, memory allocated for DMA buffers was mapped with executable permission. This made it easier to...

memory leak when destroying guest without PT devices

ISSUE DESCRIPTION Certain internal state is set up, during domain construction, in preparation for possible pass-through device assignment. On ARM and AMD V-i hardware this setup includes memory allocation. On guest teardown, cleanup was erroneously only performed when the guest actually had a...

oob access in cirrus bitblt copy

ISSUE DESCRIPTION When doing bitblt copy backwards, qemu should negate the blit width. This avoids an oob access before the start of video memory. IMPACT A malicious guest administrator can cause an out of bounds memory access, leading to information disclosure or privilege escalation. VULNERABLE...

Xen CMPXCHG8B Emulation Information Disclosure (XSA-200)

According to its self-reported version number, the Xen hypervisor installed on the remote host is missing a security update. It is, therefore, affected by an information disclosure vulnerability due to a flaw in the x86 instruction CMPXCHG8B when handling prefixes. This is triggered because legac...

Xen Intel VMX hvmemul_vmfunc() NULL Pointer Dereference DoS (XSA-203)

According to its self-reported version number, the Xen hypervisor installed on the remote host is missing a security update. It is, therefore, affected by a NULL pointer dereference flaw due to a failure to utilize necessary NULL checks before doing indirect function calls through the hvmemulvmfu...

Multi-Architecture GDB Enhanced Features for Exploiters & Reverse-Engineers: GEF

Multi-Architecture GDB Enhanced Features for Exploiters & Reverse-Engineers GEF is a kick-ass set of commands for X86, ARM, MIPS, PowerPC and SPARC to make GDB cool again for exploit dev. It is aimed to be used mostly by exploiters and reverse-engineers, to provides additional features to GDB usi...

OpenSSL 1.1.0 - Remote Client Denial of Service

OpenSSL 1.1.0 - Remote Client Denial of Service // Source: https://guidovranken.wordpress.com/2017/01/26/cve-2017-3730-openssl-1-1-0-remote-client-denial-of-service-affects-servers-as-well-poc/ / SSL server demonstration program Copyright C 2006-2015, ARM Limited, All Rights Reserved...

Multiplatform Open Source Binary Analysis: BARF Project

BARF : A multiplatform open source Binary Analysis and Reverse engineering Framework The analysis of binary code is a crucial activity in many areas of the computer sciences and software engineering disciplines ranging from software security and program analysis to reverse engineering. Manual...

Fedora 24 : xen (2016-bcbae0781f)

x86 CMPXCHG8B emulation fails to ignore operand size override XSA-200, CVE-2016-9932 1404262 ---- ARM guests may induce host asynchronous abort XSA-201, CVE-2016-9815, CVE-2016-9816, CVE-2016-9817, CVE-2016-9818 1399747 qemu: Divide by zero vulnerability in cirrusdocopy 1399055 CVE-2016-9921,...

Two CVE case study: how to use Android in the trusted zone-vulnerability warning-the black bar safety net

This article from the actual departure, about how to step by step use of Android in the trusted zone TrustZone on. Here I am using a Huawei hisilicon the Trusted Execution Environment Trusted Execution Environment, TEE on. First of all, I found one can gain kernel privilege vulnerabilities, and...

Fedora 25 : xen (2016-1b868c23a9)

x86 CMPXCHG8B emulation fails to ignore operand size override XSA-200, CVE-2016-9932 1404262 ---- ARM guests may induce host asynchronous abort XSA-201, CVE-2016-9815, Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website...