RHEL 7 : kernel (RHSA-2020:0664)

High Nessus Plugin ID 134262

New! Vulnerability Priority Rating (VPR)

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VPR Score: 7.4

Synopsis

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

Description

An update for kernel is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

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

Security Fix(es) :

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

* kernel: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver (CVE-2019-14816)

* 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)

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) :

* [PATCH] perf: Fix a race between ring_buffer_detach() and ring_buffer_wakeup() (BZ#1772826)

* core: backports from upstream (BZ#1780031)

* Race between tty_open() and flush_to_ldisc() using the tty_struct-> driver_data field. (BZ#1780160)

* [Hyper-V][RHEL7.6]Hyper-V guest waiting indefinitely for RCU callback when removing a mem cgroup (BZ#1783176)

Enhancement(s) :

* Selective backport: perf: Sync with upstream v4.16 (BZ#1782752)

Solution

Update the affected packages.

See Also

https://cwe.mitre.org/data/definitions/119.html

https://cwe.mitre.org/data/definitions/120.html

https://cwe.mitre.org/data/definitions/122.html

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

https://access.redhat.com/security/cve/CVE-2019-14816

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

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

https://access.redhat.com/errata/RHSA-2020:0664

https://bugzilla.redhat.com/1738705

https://bugzilla.redhat.com/1744149

https://bugzilla.redhat.com/1771909

https://bugzilla.redhat.com/1774870

Plugin Details

Severity: High

ID: 134262

File Name: redhat-RHSA-2020-0664.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/03/06

Updated: 2020/11/18

Dependencies: 122878, 12634

Risk Information

Risk Factor: High

VPR Score: 7.4

CVSS Score Source: CVE-2019-17133

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

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

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

CVSS v3.0

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:redhat:rhel_aus:7.6, cpe:/o:redhat:rhel_aus:7.6::computenode, cpe:/o:redhat:rhel_aus:7.6::server, cpe:/o:redhat:rhel_e4s:7.6, cpe:/o:redhat:rhel_e4s:7.6::computenode, cpe:/o:redhat:rhel_e4s:7.6::server, cpe:/o:redhat:rhel_eus:7.6, cpe:/o:redhat:rhel_eus:7.6::computenode, cpe:/o:redhat:rhel_eus:7.6::server, cpe:/o:redhat:rhel_tus:7.6, cpe:/o:redhat:rhel_tus:7.6::computenode, cpe:/o:redhat:rhel_tus:7.6::server, p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python-perf

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: 2020/03/03

Vulnerability Publication Date: 2019/07/26

Reference Information

CVE: CVE-2018-20856, CVE-2019-14816, CVE-2019-14895, CVE-2019-17133

RHSA: 2020:0664

CWE: 119, 120, 122