Detections
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RHEL 7 : kernel (RHSA-2019:3979)
high Nessus Plugin ID 131379
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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-2019:3979 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
https://access.redhat.com/errata/RHSA-2019:3979
https://bugzilla.redhat.com/show_bug.cgi?id=1746708
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: High
ID: 131379
File Name: redhat-RHSA-2019-3979.nasl
Version: 1.7
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 11/27/2019
Updated: 11/7/2024
Supported Sensors: Agentless 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