RHEL 7 : kernel-rt (RHSA-2020:0839)

High Nessus Plugin ID 134825

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-2020:0839 advisory.

- kernel: Count overflow in FUSE request leading to use- after-free issues. (CVE-2019-11487)

- 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: KVM: export MSR_IA32_TSX_CTRL to guest - incomplete fix for TAA (CVE-2019-11135) (CVE-2019-19338)

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/416.html

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

https://cwe.mitre.org/data/definitions/385.html

https://cwe.mitre.org/data/definitions/203.html

https://access.redhat.com/errata/RHSA-2020:0839

https://access.redhat.com/security/cve/CVE-2019-11487

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

https://access.redhat.com/security/cve/CVE-2019-19338

Plugin Details

Severity: High

ID: 134825

File Name: redhat-RHSA-2020-0839.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/03/23

Updated: 2020/04/21

Dependencies: 12634, 122878

Risk Information

Risk Factor: High

CVSS Score Source: CVE-2019-17666

CVSS v2.0

Base Score: 8.3

Temporal Score: 6.1

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

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

CVSS v3.0

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:A/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:/a:redhat:rhel_extras_rt:7, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-rt, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-debug-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-doc, p-cpe:/a:redhat:enterprise_linux:kernel-rt-kvm, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-devel, p-cpe:/a:redhat:enterprise_linux:kernel-rt-trace-kvm

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: 2020/03/17

Vulnerability Publication Date: 2019/04/23

Reference Information

CVE: CVE-2019-11487, CVE-2019-17666, CVE-2019-19338

BID: 108054

RHSA: 2020:0839

CWE: 120, 203, 385, 416