RHEL 7 : kernel-rt (RHSA-2020:1070)

critical Nessus Plugin ID 135078

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:1070 advisory.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* kernel: out of bound read in DVB connexant driver. (CVE-2015-9289)

* kernel: Missing permissions check for request_key() destination allows local attackers to add keys to keyring without Write permission (CVE-2017-17807)

* kernel: denial of service via ioctl call in network tun handling (CVE-2018-7191)

* kernel: usb: missing size check in the __usb_get_extra_descriptor() leading to DoS (CVE-2018-20169)

* kernel: perf_event_open() and execve() race in setuid programs allows a data leak (CVE-2019-3901)

* kernel: brcmfmac frame validation bypass (CVE-2019-9503)

* kernel: null-pointer dereference in hci_uart_set_flow_control (CVE-2019-10207)

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

* kernel: unchecked kstrdup of fwstr in drm_load_edid_firmware leads to denial of service (CVE-2019-12382)

* kernel: use-after-free in arch/x86/lib/insn-eval.c (CVE-2019-13233)

* kernel: integer overflow and OOB read in drivers/block/floppy.c (CVE-2019-14283)

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

* kernel: buffer-overflow hardening in WiFi beacon validation code. (CVE-2019-16746)

* kernel: oob memory read in hso_probe in drivers/net/usb/hso.c (CVE-2018-19985)

* Kernel: net: weak IP ID generation leads to remote device tracking (CVE-2019-10638)

* Kernel: net: using kernel space address bits to derive IP ID may potentially break KASLR (CVE-2019-10639)

* kernel: ASLR bypass for setuid binaries due to late install_exec_creds() (CVE-2019-11190)

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.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.

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-rt package based on the guidance in RHSA-2020:1070.

Plugin Details

Severity: Critical

ID: 135078

File Name: redhat-RHSA-2020-1070.nasl

Version: 1.11

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 4/1/2020

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: High

Score: 7.3

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.9

Temporal Score: 6.2

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

CVSS Score Source: CVE-2019-9503

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-2019-16746

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm

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: 3/31/2020

Vulnerability Publication Date: 4/25/2016

Reference Information

CVE: CVE-2015-9289, CVE-2017-17807, CVE-2018-19985, CVE-2018-20169, CVE-2018-7191, CVE-2019-10207, CVE-2019-10638, CVE-2019-10639, CVE-2019-11190, CVE-2019-11884, CVE-2019-12382, CVE-2019-13233, CVE-2019-14283, CVE-2019-14815, CVE-2019-15221, CVE-2019-15916, CVE-2019-16746, CVE-2019-3901, CVE-2019-9503

BID: 89937, 102301, 107528, 107890, 108011, 108299, 108380, 108474, 109055, 109092

CWE: 119, 120, 122, 125, 20, 200, 250, 400, 416, 476, 667, 787, 862

RHSA: 2020:1070

Detections

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