RHEL 7 : kernel-alt (RHSA-2020:0740)

critical Nessus Plugin ID 134361

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-2020:0740 advisory.

- kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

- kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)

- kernel: powerpc: local user can read vector registers of other users' processes via a Facility Unavailable exception (CVE-2019-15030)

- kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)

- 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)

- kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c (CVE-2019-18805)

- kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

- kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

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 affected packages.

See Also

https://cwe.mitre.org/data/definitions/20.html

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

https://cwe.mitre.org/data/definitions/190.html

https://cwe.mitre.org/data/definitions/200.html

https://cwe.mitre.org/data/definitions/400.html

https://cwe.mitre.org/data/definitions/476.html

https://access.redhat.com/security/cve/CVE-2018-16871

https://access.redhat.com/security/cve/CVE-2019-3459

https://access.redhat.com/security/cve/CVE-2019-3460

https://access.redhat.com/security/cve/CVE-2019-11884

https://access.redhat.com/security/cve/CVE-2019-15030

https://access.redhat.com/security/cve/CVE-2019-15916

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

https://access.redhat.com/security/cve/CVE-2019-18805

https://access.redhat.com/errata/RHSA-2020:0740

https://bugzilla.redhat.com/1655162

https://bugzilla.redhat.com/1663176

https://bugzilla.redhat.com/1663179

https://bugzilla.redhat.com/1709837

https://bugzilla.redhat.com/1750813

https://bugzilla.redhat.com/1759313

https://bugzilla.redhat.com/1763690

https://bugzilla.redhat.com/1771496

Plugin Details

Severity: Critical

ID: 134361

File Name: redhat-RHSA-2020-0740.nasl

Version: 1.6

Type: local

Agent: unix

Published: 3/10/2020

Updated: 5/18/2022

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

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.1

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

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

CVSS Score Source: CVE-2019-17666

CVSS v3

Risk Factor: Critical

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: E:U/RL:O/RC:C

CVSS Score Source: CVE-2019-18805

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, 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: 3/9/2020

Vulnerability Publication Date: 11/30/2018

Reference Information

CVE: CVE-2018-16871, CVE-2019-3459, CVE-2019-3460, CVE-2019-11884, CVE-2019-15030, CVE-2019-15916, CVE-2019-17666, CVE-2019-18805

BID: 106565, 107910, 108299, 108547

RHSA: 2020:0740

CWE: 20, 120, 190, 200, 400, 476