RHEL 8 : kernel (RHSA-2021:0558)

high Nessus Plugin ID 146535

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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-2021:0558 advisory.

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

Security Fix(es):

* kernel: locking issue in drivers/tty/tty_jobctrl.c can lead to an use-after-free (CVE-2020-29661)

* kernel: performance counters race condition use-after-free (CVE-2020-14351)

* kernel: ICMP rate limiting can be used for DNS poisoning attack (CVE-2020-25705)

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):

* Final fixes + drop alpha_support flag requirement for Tigerlake (BZ#1882620)

* OVS complains Invalid Argument on TCP packets going into conntrack (BZ#1892744)

* BUG: using smp_processor_id() in preemptible [00000000] code: handler106/3082 (BZ#1893281)

* Icelake performance - add intel_idle: Customize IceLake server support to RHEL-8 (BZ#1897183)

* [mlx5] IPV6 TOS rewrite flows are not getting offloaded in HW (BZ#1897688)

* RHEL 8.3 SAS - multipathd fails to re-establish paths during controller random reset (BZ#1900112)

* RHEL8.3 Beta - RHEL8.3 hangs on dbginfo.sh execution, crash dump generated (mm-) (BZ#1903019)

* Win10 guest automatic reboot after migration in Win10 and WSL2 on AMD hosts (BZ#1905084)

* block, dm: fix IO splitting for stacked devices (BZ#1905136)

* Failed to hotplug scsi-hd disks (BZ#1905214)

* PCI quirk needed to prevent GPU hang (BZ#1906516)

* RHEL8.2 - various patches to stabilize the OPAL error log processing and the powernv dump processing (ESS) (BZ#1907301)

* pmtu not working with tunnels as bridge ports and br_netfilter loaded (BZ#1907576)

* [ThinkPad X13/T14/T14s AMD]: Kdump failed (BZ#1907775)

* NFSv4 client improperly handles interrupted slots (BZ#1908312)

* NFSv4.1 client ignores ERR_DELAY during LOCK recovery, could lead to data corruption (BZ#1908313)

* [Regression] RHEL8.2 - [kernel 148.el8] cpu (sys) time regression in SAP HANA 2.0 benchmark benchInsertSubSelectPerformance (BZ#1908519)

* RHEL8: kernel-rt: kernel BUG at kernel/sched/deadline.c:1462! (BZ#1908731)

* SEV VM hang at efi_mokvar_sysfs_init+0xa9/0x19d during boot (BZ#1909243)

* C6gn support requires Ensure dirty bit is preserved across pte_wrprotect patch (BZ#1909577)

* [Lenovo 8.3 & 8.4 Bug] [Regression] No response from keyboard and mouse when boot from tboot kernel (BZ#1911555)

* Kernel crash with krb5p (BZ#1912478)

* [RHEL8] Need additional backports for FIPS 800-90A DRBG entropy seeding source (BZ#1912872)

* [Hyper-V][RHEL-8] Request to included a commit that adds a timeout to vmbus_wait_for_unload (BZ#1913528)

* Host becomes unresponsive during stress-ng --cyclic test rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (BZ#1913964)

* RHEL8.4: Backport upstream RCU patches up to v5.6 (BZ#1915638)

* Missing mm backport to fix regression introduced by another mm backport (BZ#1915814)

* [Hyper-V][RHEL-8]video: hyperv_fb: Fix the cache type when mapping the VRAM Edit (BZ#1917711)

* ionic 0000:39:00.0 ens2: IONIC_CMD_Q_INIT (40) failed: IONIC_RC_ERROR (-5) (BZ#1918372)

* [certification] mlx5_core depends on tls triggering TAINT_TECH_PREVIEW even if no ConnectX-6 card is present (BZ#1918743)

* kvm-rhel8.3 [AMD] - system crash observed while powering on virtual machine with attached VF interfaces.
(BZ#1919885)

Enhancement(s):

* [Mellanox 8.4 FEAT] mlx5: Add messages when VF-LAG fails to start (BZ#1892344)

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: High

ID: 146535

File Name: redhat-RHSA-2021-0558.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 2/16/2021

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: Medium

Score: 6.7

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-2020-29661

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

Temporal Vector: CVSS:3.0/E:P/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-cross-headers, p-cpe:/a:redhat:enterprise_linux:kernel-core, 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, cpe:/o:redhat:enterprise_linux:8, 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, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/16/2021

Vulnerability Publication Date: 11/17/2020

Reference Information

CVE: CVE-2020-14351, CVE-2020-25705, CVE-2020-29661

CWE: 330, 416

RHSA: 2021:0558

Detections

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