Detections
Analytics

RHEL 7 : kernel (RHSA-2019:3979)

high Nessus Plugin ID 131379

Language:

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-2019:3979 advisory.

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

 Security Fix(es):

 * Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

 * kernel: local attacker can trigger multiple use-after-free conditions results in privilege escalation (CVE-2019-15239)

 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):

 * On RHEL 7.7 kernel SCSI VPD information for NVMe drives is missing (breaks InfoScale) (BZ#1752423)

 * RHEL7 fnic spamming logs: Current vnic speed set to : 40000 (BZ#1754836)

 * kernel build: parallelize redhat/mod-sign.sh (BZ#1755330)

 * kernel build: speed up module compression step (BZ#1755339)

 * Nested VirtualBox VMs on Windows guest has the potential of impacting memory region allocated to other KVM guests (BZ#1755781)

 * NULL pointer dereference at check_preempt_wakeup+0x109 (BZ#1756265)

 * Regression: panic in pick_next_task_rt (BZ#1756267)

 * ixgbe reports Detected Tx Unit Hang with adapter reset on RHEL 7 (BZ#1757350)

 * [Intel 7.8 Bug] [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM. (BZ#1757757)

 * nvme: dead loop in blk_mq_tagset_wait_completed_request() when it is called from timeout handler (BZ#1758051)

 * [mlx5] VF Representer naming is not consistent/persistent through reboots with OSPD deployment (BZ#1759003)

 * OS getting restarted because of driver issue with QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA [1077:2532] (rev 02). (BZ#1759447)

 * mlx5: Load balancing not working over VF LAG configuration (BZ#1759449)

 * RHEL7.8 - ISST-LTE: vimlp1: Running LTP af_alg04.c (crypto) crash the LPAR (BZ#1763620)

 * RHEL7.5 - Fix security issues on crypto vmx (BZ#1763621)

 * RHEL 7.7 RC1 - Host crashes about 4.5 hours into switch port bounce test (BZ#1763624)

 * RHEL7.6 - cacheinfo code unsafe vs LPM (BZ#1763625)

 * xfs hangs on acquiring xfs_buf semaphore (BZ#1764245)

 * single CPU VM hangs during open_posix_testsuite (BZ#1766087)

 * rcu_sched self-detected stall on CPU while booting with nohz_full (BZ#1766098)

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-2019:3979.

See Also

http://www.nessus.org/u?25bad1b2

https://access.redhat.com/errata/RHSA-2019:3979

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1746708

https://bugzilla.redhat.com/show_bug.cgi?id=1747353

Plugin Details

Severity: High

ID: 131379

File Name: redhat-RHSA-2019-3979.nasl

Version: 1.7

Type: local

Agent: unix

Published: 11/27/2019

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

Vendor

Vendor Severity: Important

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 Score Source: CVE-2019-15239

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

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

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

CVSS Score Source: CVE-2019-14821

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: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: 11/26/2019

Vulnerability Publication Date: 8/20/2019

Reference Information

CVE: CVE-2019-14821, CVE-2019-15239

CWE: 416, 787

RHSA: 2019:3979