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

critical Nessus Plugin ID 134361

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Synopsis

The remote Red Hat host is missing one or more security updates for kernel-alt.

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 these issues but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kernel-alt package based on the guidance in RHSA-2020:0740.

Plugin Details

Severity: Critical

ID: 134361

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

Version: 1.11

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/10/2020

Updated: 3/22/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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

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-2019-18805

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel, 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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/9/2020

Vulnerability Publication Date: 11/30/2018

Reference Information

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

BID: 106565, 107910, 108299, 108547

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

RHSA: 2020:0740

Detections

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