RHEL 7 : kernel (RHSA-2020:0543)

critical Nessus Plugin ID 133786

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0543 advisory.

- kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c (CVE-2018-20856)

- kernel: use-after-free in fs/xfs/xfs_super.c (CVE-2018-20976)

- kernel: insufficient input validation in kernel mode driver in Intel i915 graphics leads to privilege escalation (CVE-2019-11085)

- kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

- kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c (CVE-2019-14895)

- kernel: buffer overflow in cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c (CVE-2019-17133)

- kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow (CVE-2019-17666)

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.

See Also

https://access.redhat.com/security/cve/CVE-2019-17666

https://access.redhat.com/errata/RHSA-2020:0543

https://access.redhat.com/security/cve/CVE-2019-14895

https://bugzilla.redhat.com/1763690

https://access.redhat.com/security/cve/CVE-2018-20856

https://access.redhat.com/security/cve/CVE-2019-11599

https://bugzilla.redhat.com/1705937

https://bugzilla.redhat.com/1738705

https://access.redhat.com/security/cve/CVE-2018-20976

https://access.redhat.com/security/cve/CVE-2019-11085

https://access.redhat.com/security/cve/CVE-2019-17133

https://bugzilla.redhat.com/1710405

https://bugzilla.redhat.com/1743547

https://bugzilla.redhat.com/1771909

https://bugzilla.redhat.com/1774870

Plugin Details

Severity: Critical

ID: 133786

File Name: redhat-RHSA-2020-0543.nasl

Version: 1.9

Type: local

Agent: unix

Published: 2/19/2020

Updated: 1/23/2023

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

Vector: CVSS2#AV:A/AC:L/Au:N/C:C/I:C/A:C

Temporal Vector: CVSS2#E:POC/RL:OF/RC:C

CVSS Score Source: CVE-2019-17666

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS Score Source: CVE-2019-17133

Vulnerability Information

CPE: cpe:2.3:o:redhat:rhel_eus:7.5:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-debug-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-headers:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:python-perf:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-abi-whitelists:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-kdump:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-kdump-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-tools-libs-devel:*:*:*:*:*:*:*, p-cpe:2.3:a:redhat:enterprise_linux:kernel-bootwrapper:*:*:*:*:*:*:*

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: 2/19/2020

Vulnerability Publication Date: 10/3/2018

Reference Information

CVE: CVE-2018-20856, CVE-2019-11085, CVE-2019-11599, CVE-2018-20976, CVE-2019-17133, CVE-2019-17666, CVE-2019-14895

BID: 108488, 108113

CWE: 119, 20, 362, 122, 416, 120, 250, 667

RHSA: 2020:0543