RHEL 7 : kernel (RHSA-2019:4159)

high Nessus Plugin ID 131980

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Synopsis

The remote Red Hat host is missing one or more security updates for kernel.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:4159 advisory.

- kernel: Out-of-bounds heap access in xfrm (CVE-2017-7184)

- kernel: Exploitable memory corruption due to UFO to non-UFO path switch (CVE-2017-1000112)

- kernel: Out-of-bounds write via userland offsets in ebt_entry struct in netfilter/ebtables.c (CVE-2018-1068)

- kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)

- kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non- members (CVE-2018-13405)

- kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559)

- Kernel: page cache side channel attacks (CVE-2019-5489)

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

Solution

Update the RHEL kernel package based on the guidance in RHSA-2019:4159.

Plugin Details

Severity: High

ID: 131980

File Name: redhat-RHSA-2019-4159.nasl

Version: 1.4

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 12/12/2019

Updated: 4/28/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2018-9568

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.7

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

Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C

CVSS Score Source: CVE-2018-18559

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:rhel_e4s:7.3, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, cpe:/o:redhat:rhel_aus:7.3, cpe:/o:redhat:rhel_tus:7.3, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:perf

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/10/2019

Vulnerability Publication Date: 3/19/2017

Exploitable With

Core Impact

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

Reference Information

CVE: CVE-2017-1000112, CVE-2017-7184, CVE-2018-1068, CVE-2018-13405, CVE-2018-18559, CVE-2018-9568, CVE-2019-5489

CWE: 119, 122, 200, 284, 416

RHSA: 2019:4159

Detections

Analytics