MEDIUM6.0
The access_pmu_evcntr function in arch/arm64/kvm/sys_regs.c in the Linux kernel before 4.8.11 allows privileged KVM guest OS users to cause a denial of service (assertion failure and host OS crash) by accessing the Performance Monitors Cycle Count Register (PMCCNTR).
CVSS 2.0СРЕДНЯЯ 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:CCVSS 3.xСРЕДНЯЯ 6.0
CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:HСсылки
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7a29694049edd728e2400ab57ad7553e5aa9
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11
- https://bugzilla.redhat.com/show_bug.cgi?id=1492984
- https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aa9
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9e3f7a29694049edd728e2400ab57ad7553e5aa9
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.11
- https://bugzilla.redhat.com/show_bug.cgi?id=1492984
- https://github.com/torvalds/linux/commit/9e3f7a29694049edd728e2400ab57ad7553e5aa9