RHEL 8 : kernel (RHSA-2019:1959)

critical Nessus Plugin ID 127637

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Synopsis

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

Description

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:1959 advisory.

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

Security Fix(es):

* kernel: insufficient input validation in kernel mode driver in Intel i915 graphics leads to privilege escalation (CVE-2019-11085)

* kernel: DMA attack using peripheral devices (Thunderclap) (BZ#1690716)

* kernel: infinite loop in update_blocked_averages() in kernel/sched/fair.c leading to denial of service (CVE-2018-20784)

* kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)

* kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)

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):

* [DELL 8.0 z-stream BUG] - CPU unsupported message with CFL-H/S 8+2 due to updated Stepping (BZ#1711048)

* RHEL8.0 Snapshot4 - [LTC Test] Guest crashes during vfio device hot-plug/un-plug operations. (kvm) (BZ#1714746)

* Using Transactional Memory (TM) in a Guest Locks-up Host Core on a Power9 System (BZ#1714751)

* VRSAVE register not properly saved and restored (BZ#1714753)

* Fix potential spectre gadget in arch/s390/kvm/interrupt.c (BZ#1714754)

* RHEL8.0 RC2 - kernel/KVM - count cache flush Spectre v2 mitigation (required for POWER9 DD2.3) (BZ#1715018)

* iommu/amd: Set exclusion range correctly (BZ#1715336)

* RHEL8.0 - sched/fair: Do not re-read ->h_load_next during hierarchical load calculation (BZ#1715337)

* cross compile builds are broken (BZ#1715339)

* Patch generated by 'make rh-test-patch' doesn't get applied during build (BZ#1715340)

* hard lockup panic in during execution of CFS bandwidth period timer (BZ#1715345)

* perf annotate -P does not give full paths (BZ#1716887)

* [Dell EMC 8.0 BUG] File system corrupting with I/O Stress on H330 PERC on AMD Systems if IOMMU passthrough is disabled (BZ#1717344)

* Fix Spectre v1 gadgets in drivers/gpu/drm/drm_bufs.c and drivers/gpu/drm/drm_ioctl.c (BZ#1717382)

* BUG: SELinux doesn't handle NFS crossmnt well (BZ#1717777)

* krb5{,i,p} doesn't work with older enctypes on aarch64 (BZ#1717800)

* [RHEL-8.0][s390x]ltp-lite mtest06 testing hits EWD due to: rcu: INFO: rcu_sched self-detected stall on CPU (BZ#1717801)

* RHEL 8 Snapshot-6: CN1200E SW iSCSI I/O performance degradation after a SCSI device/target reset rhel-8.0.0.z] (BZ#1717804)

* dm cache metadata: Fix loading discard bitset (BZ#1717868)

* jit'd java code on power9 ppc64le experiences stack corruption (BZ#1717869)

* BUG: connect(AF_UNSPEC, ...) on a connected socket returns an error (BZ#1717870)

* mm: BUG: unable to handle kernel paging request at 0000000057ac6e9d (BZ#1718237)

* [HPE 8.0 BUG] DCPMM fsdax boot initialization takes a long time causing auto-mount to fail (BZ#1719635)

* AMD Rome: WARNING: CPU: 1 PID: 0 at arch/x86/kernel/cpu/mcheck/mce.c:1510 mcheck_cpu_init+0x7a/0x460 (BZ#1721233)

* [RHEL8.1] AMD Rome: EDAC amd64: Error: F0 not found, device 0x1460 (broken BIOS?) (BZ#1722365)

* AMD Rome: Intermittent NMI received for unknown reason (BZ#1722367)

* [DELL 8.0 BUG] - CPU unsupported message with WHL-U due to updated Stepping (BZ#1722372)

Enhancement(s):

* RHEL 8 - AMD Rome Support (BZ#1721972)

Users of kernel are advised to upgrade to these updated packages, which fix these bugs and add this enhancement.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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 affected packages.

Plugin Details

Severity: Critical

ID: 127637

File Name: redhat-RHSA-2019-1959.nasl

Version: 1.10

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 8/12/2019

Updated: 11/6/2024

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

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2018-20784

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-debug-core, 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-core, p-cpe:/a:redhat:enterprise_linux:kernel-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-core, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules-extra, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-modules, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:python3-perf

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2019

Vulnerability Publication Date: 2/22/2019

Reference Information

CVE: CVE-2018-20784, CVE-2019-11085, CVE-2019-11810, CVE-2019-11811

CWE: 250, 416, 476, 835

RHSA: 2019:1959

Detections

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