Simon Gaiser

**Name of the Vulnerable Software and Affected Versions** Xen hypervisor (affected versions not specified) **Description** The issue is caused by synchronization errors when using a shared resource in the blkfront driver of the Xen hypervisor. Exploitation of this issue may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen (affected versions not specified) **Description** The issue is caused by synchronization errors when using shared resources in components of the Xen hypervisor, including blkfront, netfront, scsifront, usbfront, dmabuf, xenbus, 9p, kbdfront, and pvcalls. Exploitation of this issue may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen hypervisor (affected versions not specified) **Description** The issue is caused by synchronization errors when using a shared resource in the scsifront driver of the Xen hypervisor. Exploitation of this issue may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen (affected versions not specified) **Description** The issue is caused by synchronization errors when using a shared resource in the Xen hypervisor's paravirtualization (PV) mode implementation. This can be exploited to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen hypervisor (affected versions not specified) **Description** The issue is caused by synchronization errors when using a shared resource in the gntalloc driver of the Xen hypervisor. Exploitation of this issue may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen hypervisor netfront component (affected versions not specified) **Description** The issue is caused by synchronization errors when using a shared resource in the netfront component of the Xen hypervisor. Exploitation of this issue may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen (affected versions not specified) **Description** The issue is caused by synchronization errors when using a shared resource in the xenbus component of the Xen hypervisor. Exploitation of this issue may allow an attacker to cause a denial of service. **Recommendations** At the moment, there is no information about a newer version that contains a fix for this vulnerability.

**Name of the Vulnerable Software and Affected Versions** Xen versions prior to 4.10 **Description** An issue in Xen allows x86 guest OS users to cause a denial of service (hypervisor crash) or possibly gain privileges because MSI mapping was mishandled. **Recommendations** For versions prior to 4.10, update to version 4.10 or later to resolve the issue.