CVE-2018-19963

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service host OS crash or possibly gain host OS privileges because x86 IOREQ server resource accounting for external emulators was mishandled...

CVE-2018-19963

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service host OS crash or possibly gain host OS privileges because x86 IOREQ server resource accounting for external emulators was mishandled...

CVE-2018-19963

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service host OS crash or possibly gain host OS privileges because x86 IOREQ server resource accounting for external emulators was mishandled...

CVE-2018-19963

An issue was discovered in Xen 4.11 allowing HVM guest OS users to cause a denial of service host OS crash or possibly gain host OS privileges because x86 IOREQ server resource accounting for external emulators was mishandled...

CVE-2018-19963

CVE-2018-19963 affects Xen 4.11 and is caused by mishandling of x86 IOREQ server resource accounting for external emulators. It can enable a local HVM guest OS user to crash the host OS or potentially gain host privileges. The connected documents reference Xen advisory XSA-276; no explicit patch/...

resource accounting issues in x86 IOREQ server handling

ISSUE DESCRIPTION Allocation of pages used to communicate with external emulators did not follow certain principles that are required for proper life cycle management of guest exposed pages. IMPACT A compromised DM stubdomain may cause Xen to crash, resulting in a DoS Denial of Service affecting...