A flaw was found in the way KVM hypervisor handled x2APIC Machine Specific Rregister (MSR) access with nested(=1) virtualization enabled. In that L1 guest could access L0's APIC register values via L2 guest when 'virtualize x2APIC mode' is enabled. A guest could use this flaw to potentially crash the host kernel resulting in DoS issue. Kernel versions from 4.16 and newer are vulnerable to this issue.

A flaw was found in the Linux kernel in the function hid_debug_events_read() in drivers/hid/hid-debug.c file which may enter an infinite loop with certain parameters passed from a userspace. A local privileged user ("root") can cause a system lock up and a denial of service. Versions from v4.18 and newer are vulnerable.

In a Linux KVM guest that has PV TLB enabled a process in the guest kernel may be able to read memory locations from another process in the same guest. This problem is limit to the host running linux kernel 4.10 with a guest running linux kernel 4.16 or later. The problem mainly affects AMD processors but Intel CPUs cannot be ruled out.

Asio C++ Library lacks a fallback error code in the case of SSL_ERROR_SYSCALL

netlabel: fix out-of-bounds memory accesses

GNOME gvdb gvdb-builder.c gvdb_table_write_contents_async use after free

The TSS (Tuple Space Search) algorithm in Open vSwitch 2.x through 2.17.2 and 3.0.0 allows remote attackers to cause a denial of service (delays of legitimate traffic) via crafted packet data that requires excessive evaluation time within the packet classification algorithm for the MegaFlow cache aka a Tuple Space Explosion (TSE) attack.

An issue was discovered in USBGuard before 1.1.0. On systems with the usbguard-dbus daemon running an unprivileged user could make USBGuard allow all USB devices to be connected in the future.

The iconv feature in the GNU C Library (aka glibc or libc6) through 2.32 when processing invalid multi-byte input sequences in the EUC-KR encoding may have a buffer over-read.