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

High Nessus Plugin ID 134825

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 6.7

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/120.html

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

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

https://cwe.mitre.org/data/definitions/416.html

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

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

https://bugzilla.redhat.com/1703063

https://bugzilla.redhat.com/1763690

https://bugzilla.redhat.com/1781514

Plugin Details

Severity: High

ID: 134825

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

Version: 1.3

Type: local

Agent: unix

Published: 2020/03/23

Updated: 2020/11/18

Dependencies: 12634, 122878

Risk Information

Risk Factor: High

VPR Score: 6.7

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:/o:redhat:rhel_aus:7.7, cpe:/o:redhat:rhel_e4s:7.7, cpe:/o:redhat:rhel_eus:7.7, cpe:/o:redhat:rhel_tus:7.7, cpe:/a:redhat:rhel_extras_rt: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