Xen: broken check in memory_exchange() permits PV guest breakout（CVE-2017-7228）

Detailed analysis: Pandavirtualization: Exploiting the Xen hypervisor This bug report describes a vulnerability in memoryexchange that permits PV guest kernels to write to an arbitrary virtual address with the hypervisor privileges. The vulnerability was introduced through a broken fix for...

Pandavirtualization: Exploiting the Xen hypervisor

Posted by Jann Horn, Project Zero On 2017-03-14, I reported a bug to Xen's security team that permits an attacker with control over the kernel of a paravirtualized x86-64 Xen guest to break out of the hypervisor and gain full control over the machine's physical memory. The Xen Project publicly...

[SECURITY] Fedora 25 Update: xen-4.7.2-4.fc25

This package contains the XenD daemon and xm command line tools, needed to manage virtual machines running under the Xen hypervisor...

CVE-2017-7228

An issue known as XSA-212 was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arra...

CVE-2017-7228

An issue known as XSA-212 was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arra...

ALPINE-CVE-2017-7228

An issue known as XSA-212 was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arra...

CVE-2017-7228

An issue known as XSA-212 was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arra...

CVE-2017-7228

CVE-2017-7228 refers to an XSA-212 issue in the Xen hypervisor. The root cause is an insufficient check in the XENMEM_exchange input introduced by the XSA-29 fix, which can permit a PV guest to drive hypervisor memory accesses outside of the guest-provided input/output arrays. Affected Xen branch...

CVE-2017-7228

An issue known as XSA-212 was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arra...

xen-kernel -- broken check in memory_exchange() permits PV guest breakout

The Xen Project reports: The XSA-29 fix introduced an insufficient check on XENMEMexchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays. A malicious or buggy 64-bit PV guest may be able to access all of system memory, allowing fo...

CVE-2017-2418

An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "Hypervisor" component. It allows guest OS users to obtain sensitive information from the CR8 control register via unspecified vectors...

CVE-2017-2418

An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "Hypervisor" component. It allows guest OS users to obtain sensitive information from the CR8 control register via unspecified vectors...

Information disclosure

An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "Hypervisor" component. It allows guest OS users to obtain sensitive information from the CR8 control register via unspecified vectors...

CVE-2017-2418

CVE-2017-2418 concerns macOS before 10.12.4 where the Hypervisor framework could allow a guest OS user to read the CR8 control register from host/guest context via unspecified vectors. Connected documents confirm the affected product family and root cause: information leakage in Hypervisor state ...

CVE-2017-2418

An issue was discovered in certain Apple products. macOS before 10.12.4 is affected. The issue involves the "Hypervisor" component. It allows guest OS users to obtain sensitive information from the CR8 control register via unspecified vectors...

Mac OS X 10.x < 10.12.4 Multiple Vulnerabilities

Binary data 700032.prm...

macOS 10.12.x < 10.12.4 Multiple Vulnerabilities (httpoxy)

The remote host is running a version of macOS that is 10.12.x prior to 10.12.4. It is, therefore, affected by multiple vulnerabilities in multiple components, some of which are remote code execution vulnerabilities. An unauthenticated, remote attacker can exploit these remote code execution...

(Pwn2Own) VMware Workstation Uninitialized Memory Privilege Escalation Vulnerability

This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of VMware Workstation. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling...

(Pwn2Own) VMware Workstation Uninitialized Memory Information Disclosure Vulnerability

This vulnerability allows local attackers to disclose sensitive information on vulnerable installations of VMware Workstation. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the...

VMware Workstation SVGA Heap-based Buffer Overflow Privilege Escalation Vulnerability

This vulnerability allows local attackers to execute arbitrary code on vulnerable installations of VMware Workstation. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling...