Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4071)

high Nessus Plugin ID 109156
New! Plugin Severity Now Using CVSS v3

The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2018-4071 advisory.

- The x86/fpu (Floating Point Unit) subsystem in the Linux kernel before 4.13.5, when a processor supports the xsave feature but not the xsaves feature, does not correctly handle attempts to set reserved bits in the xstate header via the ptrace() or rt_sigreturn() system call, allowing local users to read the FPU registers of other processes on the system, related to arch/x86/kernel/fpu/regset.c and arch/x86/kernel/fpu/signal.c. (CVE-2017-15537)

- drivers/media/usb/dvb-usb/dib0700_devices.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (BUG and system crash) or possibly have unspecified other impact via a crafted USB device. (CVE-2017-16646)

- The get_endpoints function in drivers/usb/misc/usbtest.c in the Linux kernel through 4.13.11 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted USB device. (CVE-2017-16532)

- A flaw was found in the Linux 4.x kernel's implementation of 32-bit syscall interface for bridging. This allowed a privileged user to arbitrarily write to a limited range of kernel memory. (CVE-2018-1068)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2018-4071.html

Plugin Details

Severity: High

ID: 109156

File Name: oraclelinux_ELSA-2018-4071.nasl

Version: 1.15

Type: local

Agent: unix

Published: 4/19/2018

Updated: 9/8/2021

Dependencies: linux_alt_patch_detect.nasl, ssh_get_info.nasl

Risk Information

CVSS Score Source: CVE-2018-1068

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:oracle:linux:6, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware

Required KB Items: Host/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/18/2018

Vulnerability Publication Date: 10/17/2017

Exploitable With

CANVAS (CANVAS)

Core Impact

Metasploit (Linux Kernel UDP Fragmentation Offset (UFO) Privilege Escalation)

Reference Information

CVE: CVE-2016-9191, CVE-2016-10318, CVE-2017-0861, CVE-2017-2618, CVE-2017-5715, CVE-2017-5753, CVE-2017-5754, CVE-2017-7482, CVE-2017-7518, CVE-2017-7541, CVE-2017-7542, CVE-2017-7618, CVE-2017-8824, CVE-2017-10661, CVE-2017-12154, CVE-2017-12190, CVE-2017-12192, CVE-2017-12193, CVE-2017-14106, CVE-2017-14140, CVE-2017-14489, CVE-2017-15115, CVE-2017-15537, CVE-2017-15649, CVE-2017-16525, CVE-2017-16526, CVE-2017-16527, CVE-2017-16529, CVE-2017-16530, CVE-2017-16531, CVE-2017-16532, CVE-2017-16533, CVE-2017-16535, CVE-2017-16536, CVE-2017-16646, CVE-2017-16649, CVE-2017-16650, CVE-2017-17052, CVE-2017-17712, CVE-2017-1000112, CVE-2017-1000405, CVE-2017-1000407, CVE-2018-1068