Assertion failure in Linux kernel - CVE-2017-1000252

Vulnerability identifier: #VU8695

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2017-1000252

CWE-ID: CWE-617

Exploitation vector: Adjecent network

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The KVM subsystem in the Linux kernel through 4.13.3 allows guest OS users to cause a denial of service (assertion failure, and hypervisor hang or crash) via an out-of bounds guest_irq value, related to arch/x86/kvm/vmx.c and virt/kvm/eventfd.c.

Linux kernel
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Real Time
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for Real Time for NFV
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux Server - Extended Update Support
Red Hat Enterprise Linux for Power, big endian - Extended Update Support
Red Hat Enterprise Linux EUS Compute Node
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux Server - TUS
SUSE Linux
Ubuntu

kernel (Red Hat package)
kernel-rt (Red Hat package)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Enterprise Linux Server for x86_64 - Update Services for SAP Solutions
Red Hat Virtualization Host

Install the latest version of Linux kernel 4.4.90, 4.13.5 or 4.9.53.

kernel (Red Hat package) - addressed in versions 3.10.0-693.25.2.el7, 3.10.0-862.el7
kernel-rt (Red Hat package) - update to 3.10.0-862.rt56.804.el7

• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.90
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
• https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.53

• Ubuntu update for Linux kernel (HWE)
• Ubuntu update for Linux kernel (GCP)
• Ubuntu update for Linux kernel
• OpenSUSE Linux update for the Linux Kernel
• OpenSUSE Linux update for the Linux Kernel
• SUSE Linux update for the Linux Kernel
• Red Hat update for kernel
• Red Hat update for kernel
• Red Hat update for kernel-rt