RHEL 6 : kernel (RHSA-2019:2473)

high Nessus Plugin ID 127878

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Synopsis

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

Description

An update for kernel is now available for Red Hat Enterprise Linux 6.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es) :

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

* kernel: Salsa20 encryption algorithm does not correctly handle zero-length inputs allowing local attackers to cause denial-of-service (CVE-2017-17805)

* kernel: Unprivileged users able to inspect kernel stacks of arbitrary tasks (CVE-2018-17972)

* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es) :

* OOPS with NULL pointer exception in v4l2_ctrl_query_menu when second arg of function is NULL (BZ#1647975)

* Another RHEL 6 hang in congestion_wait() (BZ#1658254)

* kernel crash after running user space script (BZ#1663262)

* RHEL-6.10: Don't report the use of retpoline on Skylake as vulnerable (BZ# 1666102)

* Bad pagetable: 000f '*pdpt = 0000000000000000 *pde = 0000000000000000' RHEL 6 32bit (BZ#1702782)

* fs/binfmt_misc.c: do not allow offset overflow [6.10.z] (BZ#1710149)

* Wrong spectre backport causing linux headers to break compilation of 3rd party packages (BZ#1722185)

Solution

Update the affected packages.

Plugin Details

Severity: High

ID: 127878

File Name: redhat-RHSA-2019-2473.nasl

Version: 1.6

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/14/2019

Updated: 2/18/2020

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-i686, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-s390x, p-cpe:/a:redhat:enterprise_linux:kernel-debuginfo-common-x86_64, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-doc, p-cpe:/a:redhat:enterprise_linux:kernel-firmware, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-debuginfo, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:perf-debuginfo, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:python-perf-debuginfo, cpe:/o:redhat:enterprise_linux:6

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: 8/13/2019

Vulnerability Publication Date: 12/20/2017

Reference Information

CVE: CVE-2017-17805, CVE-2018-17972, CVE-2019-1125, CVE-2019-5489

RHSA: 2019:2473

Detections

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