RHEL 7 : kernel (RHSA-2021:2314)

high Nessus Plugin ID 150379

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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-2021:2314 advisory.

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

Security Fix(es):

* kernel: Integer overflow in Intel(R) Graphics Drivers (CVE-2020-12362)

* kernel: Use after free via PI futex state (CVE-2021-3347)

* kernel: use-after-free in n_tty_receive_buf_common function in drivers/tty/n_tty.c (CVE-2020-8648)

* kernel: Improper input validation in some Intel(R) Graphics Drivers (CVE-2020-12363)

* kernel: Null pointer dereference in some Intel(R) Graphics Drivers (CVE-2020-12364)

* kernel: Speculation on pointer arithmetic against bpf_context pointer (CVE-2020-27170)

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):

* kernel crash when call the timer function (sctp_generate_proto_unreach_event) of sctp module (BZ#1707184)

* SCSI error handling process on HP P440ar controller gets stuck indefinitely in device reset operation (BZ#1830268)

* netfilter: reproducible deadlock on nft_log module autoload (BZ#1858329)

* netfilter: NULL pointer dereference in nf_tables_set_lookup() (BZ#1873171)

* [DELL EMC 7.9 Bug]: No acpi_pad threads on top command for power cap policy equal to 0 watts (BZ#1883174)

* A race between i40e_ndo_set_vf_mac() and i40e_vsi_clear() in the i40e driver causes a use after free condition of the kmalloc-4096 slab cache. (BZ#1886003)

* netxen driver performs poorly with RT kernel (BZ#1894274)

* gendisk->disk_part_tbl->last_lookup retains pointer after partition deletion (BZ#1898596)

* Kernel experiences panic in update_group_power() due to division error even with Bug 1701115 fix (BZ#1910763)

* RHEL7.9 - zfcp: fix handling of FCP_RESID_OVER bit in fcp ingress path (BZ#1917839)

* RHEL7.9 - mm/THP: do not access vma->vm_mm after calling handle_userfault (BZ#1917840)

* raid: wrong raid io account (BZ#1927106)

* qla2x00_status_cont_entry() missing upstream patch that prevents unnecessary ABRT/warnings (BZ#1933784)

* RHEL 7.9.z - System hang caused by workqueue stall in qla2xxx driver (BZ#1937945)

* selinux: setsebool can trigger a deadlock (BZ#1939091)

* [Hyper-V][RHEL-7] Cannot boot kernel 3.10.0-1160.21.1.el7.x86_64 on Hyper-V (BZ#1941841)

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-2021:2314.

Plugin Details

Severity: High

ID: 150379

File Name: redhat-RHSA-2021-2314.nasl

Version: 1.11

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/9/2021

Updated: 11/7/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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-2021-3347

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: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: 6/8/2021

Vulnerability Publication Date: 2/6/2020

Reference Information

CVE: CVE-2020-12362, CVE-2020-12363, CVE-2020-12364, CVE-2020-27170, CVE-2020-8648, CVE-2021-3347

CWE: 190, 20, 200, 416, 476

RHSA: 2021:2314

Detections

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