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RHEL 8 : kernel (RHSA-2020:5418)
low Nessus Plugin ID 144420
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Synopsis
The remote Red Hat host is missing a security update for kernel.Description
The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:5418 advisory.The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: information exposure in drivers/char/random.c and kernel/time/timer.c (CVE-2020-16166)
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):
* [RHEL-8.3][arm64] CN99xx: DIMM errors not populated in EDAC sysfs (BZ#1857754)
* sctp: backports from upstream, 2nd phase (BZ#1878308)
* Backport upstream OVS performance patch fix (BZ#1879936)
* avoid flush_backlog IPI for isolated CPUs by configuring RPS cpumask (BZ#1883315)
* Unexpected fragmentation needed error, OpenShift 4, OVS, VXLAN, GSO, Azure (BZ#1885767)
* XFS: reflinked file data corruption (BZ#1886896)
* Scheduler: rq->tmp_alone_branch != &rq->leaf_cfs_rq_list (BZ#1890123)
* geneve: add transport ports in route lookup for geneve (BZ#1891819)
* BUG: using smp_processor_id() in preemptible [00000000] code: handler106/3082 (BZ#1893282)
* HRTICK not armed in specific cases with SCHED_DEADLINE (BZ#1894074)
* RHEL8.1 - ibmveth is producing TX errors over VXLAN when large send (TSO) is enabled (-> related to Red Hat bug 1816254 - OCP 4.3 - Authentication clusteroperator is in unknown state on POWER 9 servers) (BZ#1896300)
* RHEL8.2 - mm/gup: fix gup_fast with dynamic page table folding (BZ#1896352)
* block layer: update to upstream v5.8 (BZ#1896788)
* [Regression] RHEL8.2 zstream - Undetected Data corruption in MPI workloads that use VSX for reductions on POWER9 DD2.1 systems (BZ#1897279)
* ARO: excessive pod memory allocation causes node lockup (BZ#1901549)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for this issue 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-2020:5418.See Also
http://www.nessus.org/u?5861ddaa
https://access.redhat.com/security/updates/classification/#moderate
Plugin Details
Severity: Low
ID: 144420
File Name: redhat-RHSA-2020-5418.nasl
Version: 1.11
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 12/18/2020
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: Low
Score: 2.2
Vendor
Vendor Severity: Moderate
CVSS v2
Risk Factor: Medium
Base Score: 4.3
Temporal Score: 3.2
Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N
CVSS Score Source: CVE-2020-16166
CVSS v3
Risk Factor: Low
Base Score: 3.7
Temporal Score: 3.2
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: 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, 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-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-core, cpe:/o:redhat:rhel_eus:8.2, 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, p-cpe:/a:redhat:enterprise_linux:kernel-modules-extra, p-cpe:/a:redhat:enterprise_linux:kernel-modules, p-cpe:/a:redhat:enterprise_linux:kernel-zfcpdump-modules
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: 12/15/2020
Vulnerability Publication Date: 7/30/2020
Reference Information
CVE: CVE-2020-16166