SUSE CVE-2019-18421

An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations. There are issues with restartable PV type change operations. To avoid using shadow pagetables for PV guests, Xen...

UBUNTU-CVE-2019-18421

An issue was discovered in Xen through 4.12.x allowing x86 PV guest OS users to gain host OS privileges by leveraging race conditions in pagetable promotion and demotion operations. There are issues with restartable PV type change operations. To avoid using shadow pagetables for PV guests, Xen...

PT-2019-4883 · Xen +1 · Xen +1

Name of the Vulnerable Software and Affected Versions: Xen versions through 4.12.x Description: The issue is related to a flaw in restartable PV type change operations, which can be exploited by a remote attacker to gain access to confidential data, compromise its integrity, and cause a denial of...