CVE-2017-10921

The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAPdevicemap and GNTMAPhostmap mapping, which allows guest OS users to cause a denial of service count mismanagement and memory corruption or obtain privileged host OS access, aka XSA-224 bug 2...

CVE-2017-10913

CVE-2017-10913 affects the Xen hypervisor grant-table handling up to 4.8.x. The vulnerability arises from concurrent unmap calls causing false grant mappings, enabling backend attackers to read sensitive data or escalate privileges (XSA-218 bug 1). Impact shown in multiple advisories; patches/wor...

CVE-2017-10921

CVE-2017-10921 affects the Xen hypervisor grant-table operations in Xen up to 4.8.x, where insufficient type counts for GNTMAP_device_map and GNTMAP_host_map can lead to count mismanagement, memory corruption, DoS, or privilege escalation to the host. Debian DLA-1132 documents the issue and notes...

Xen grant-table feature race condition vulnerability

Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. A competitive condition vulnerability exists in the Xengrant-table feature that allows attackers to conduct denial-of-service attacks that can be exploited to crash a system...

Xen has multiple vulnerabilities (CNVD-2017-21732)

Xen is an open source virtual machine monitor product developed at the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. A security vulnerability exists in t...

Xen grant-table feature denial-of-service vulnerability

Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. A security vulnerability in the Xen grant-table feature allows an attacker to exploit the vulnerability by submitting a special request to crash the system...

Xen grant-table function denial of service vulnerability (CNVD-2017-21747)

Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. A security vulnerability in the Xen grant-table feature allows an attacker to exploit the vulnerability by submitting a special request to crash the system...

Xen grant-table function denial of service vulnerability (CNVD-2017-21748)

Xen is an open source virtual machine monitor product developed at the University of Cambridge in the United Kingdom. The Xen grant-table feature fails to properly handle the mapping of GNTMAPdevicemap and GNTMAPhostmap, allowing an attacker to exploit a vulnerability by submitting a special...

Citrix XenServer Multiple Vulnerabilities (CTX224740)

The version of Citrix XenServer installed on the remote host is missing a security hotfix. It is, therefore, affected by multiple vulnerabilities : - A flaw exists that causes grant table operations to fail due to improper handling of reference counts. An unauthenticated, remote attacker can...

Races in the grant table unmap code

ISSUE DESCRIPTION We have discovered two bugs in the code unmapping grant references. When a grant had been mapped twice by a backend domain, and then unmapped by two concurrent unmap calls, the frontend may be informed that the page had no further mappings when the first call completed rather th...

grant table operations mishandle reference counts

ISSUE DESCRIPTION We have discovered a number of bugs in the code mapping and unmapping grant references. If a grant is mapped with both the GNTMAPdevicemap and GNTMAPhostmap flags, but unmapped only with hostmap, the devicemap portion remains but the page reference counts are lowered as though i...

CVE-2017-8449

X-Pack Security 5.2.x would allow access to more fields than the user should have seen if the field level security rules used a mix of grant and exclude rules when merging multiple rules with field level security rules for the same index...

Xen Code Execution Vulnerability

Xen is an open source virtual machine monitor product developed at the University of Cambridge, UK. The product enables different and incompatible operating systems to run on the same computer and supports runtime migration to ensure uptime and avoid downtime. A security vulnerability exists in X...

Fedora 25 : xen (2017-5ae70ac6a5)

xen: various flaws 1447345 x86: 64bit PV guest breakout via pagetable use-after-mode-change XSA-213 grant transfer allows PV guest to elevate privileges XSA-214 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable...

CVE-2016-6526

The SpamCall Activity component in Telecom application on Samsung Note device L5.0/5.1 and M6.0 allows attackers to cause a denial of service crash and reboot or possibly gain privileges via a malformed serializable object...

IBM WebSphere Application Server 7.0 < 7.0.0.39 Multiple Vulnerabilities (FREAK)

Binary data 9700.prm...

The vulnerability of Xen hypervisors, which allows a malicious actor to trigger a service failure

The vulnerability of the GNTTABOPswapgrantref function in Xen administrators’ scripts is related to pointer swapping errors. Exploiting this vulnerability could allow an attacker, operating locally, to cause a service failure by creating instances of the GNTTABOPsetuptable or GNTTABOPsetversion...

Native applications with OAuth 2

By Justin Richer and Antonio Sanso This article was excerpted from the book OAuth 2 in Action. The OAuth core specification specifies four different grant types: Authorization Code, Implicit, Resource Owner Password Credentials and Client Credentials. Each grant type is designed with different...

grantproducts.com XSS vulnerability

Vulnerable URL: http://grantproducts.com/search?q=%3Cscript+src%3Dhttps%3A%2F%2Fopenbugbounty.org%2F1.js%3E=Submit+Query Details: Description| Value ---|--- Patched:| No Latest check for patch:| 27.07.2017 Vulnerability type:| XSS Vulnerability status:| Publicly disclosed Alexa Rank| 1200164 VIP...

Xen GNTTABOP_swap_grant_ref() Version Check Denial of Service Vulnerability

Xen is a virtualization technology for the Linux kernel that allows multiple operating systems to run simultaneously. A security vulnerability in Xen GNTTABOPswapgrantref allows local users to exploit the vulnerability by triggering a null pointer reference that crashes the target HOST, due to a...