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RHEL 7 : kernel (RHSA-2019:2837)
medium Nessus Plugin ID 129149
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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-2019:2837 advisory.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: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)
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):
* [RHEL7.7] Refined TSC clocksource calibration occasionally fails on some SkyLake-X servers (BZ#1719781)
* tc: incorrect flows statistic on bond device (shared block) (BZ#1719786)
* Qlogic qla2xxx driver version 10.x.x.x pins all irq requests to cpu0 and associated cores (BZ#1720956)
* libceph: handle an empty authorize reply (BZ#1722769)
* RHEL7.6 - pkey: Indicate old mkvp only if old and curr. mkvp are different (BZ#1723153)
* RHEL7.6 - qdio: clear intparm during shutdown (BZ#1723154)
* [RHEL7] Fix Spectre V1 vulnerability in vhost code (BZ#1724079)
* [Stratus] 802.3ad bond group member disabled after reboot (or I/O failure testing) (BZ#1725037)
* Accept validate negotiate if server returns NT_STATUS_NOT_SUPPORTED. (BZ#1726563)
* [Regression] RHEL7.6 - losing dirty bit during THP splitting, possible memory corruption (mm-) (BZ#1727108)
* [Intel 7.7 BUG] BUG: unable to handle kernel paging request at 000000006b4fd010 (BZ#1727110)
* KVM tracebacks causing significant latency to VM (BZ#1728174)
* NULL pointer dereference in vxlan_dellink+0xaa (BZ#1728198)
* [rhel7]NULL pointer dereference at vxlan_fill_metadata_dst (BZ#1728199)
* After update to RHEL 7.6 (3.10.0-957.1.3.el7.x86_64) from 7.4, customer has experienced multiple panics in kernel at BUG at drivers/iommu/iova.c:859! (BZ#1731300)
* kernel build: speed up debuginfo extraction (BZ#1731464)
* hpsa driver hard lockup trying to complete a no longer valid completion on the stack (BZ#1731980)
* XFS: forced shutdown in xfs_trans_cancel during create near ENOSPC (BZ#1731982)
* TCP packets are segmented when sent to the VLAN device when coming from VXLAN dev. (BZ#1732812)
* panic handing smb2_reconnect due to a use after free (BZ#1737381)
* Backport TCP follow-up for small buffers (BZ#1739129)
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 RHEL kernel package based on the guidance in RHSA-2019:2837.See Also
http://www.nessus.org/u?4e793eea
https://access.redhat.com/errata/RHSA-2019:2837
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: Medium
ID: 129149
File Name: redhat-RHSA-2019-2837.nasl
Version: 1.7
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/23/2019
Updated: 11/6/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Low
Base Score: 2.1
Temporal Score: 1.6
Vector: CVSS2#AV:L/AC:L/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2019-5489
CVSS v3
Risk Factor: Medium
Base Score: 5.5
Temporal Score: 5
Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:rhel_eus:7.6, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-devel, 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-kdump, 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, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel, 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: 9/20/2019
Vulnerability Publication Date: 1/7/2019
Reference Information
CVE: CVE-2019-11810, CVE-2019-5489