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RHEL 7 : kernel (RHSA-2019:2600)

high Nessus Plugin ID 128495

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Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2019:2600 advisory.

 The kernel packages contain the Linux kernel, the core of any Linux operating system.

 Security Fix(es):

 * kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)

 * kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results (CVE-2019-9500)

 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.

 Bug Fix(es):

 * [mlx4] VXLAN over VLAN TCP segmentation (BZ#1734333)

 * Race condition in /dev/sg due to missing synchronization causes corruption in RHV (BZ#1737380)

 * panic handing smb2_reconnect due to a use after free (BZ#1737382)

 * NFSv4.1 client stuck in infinite loop when received NFS4ERR_SEQ_MISORDERED error (BZ#1739077)

 * Backport TCP follow-up for small buffers (BZ#1739130)

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 package based on the guidance in RHSA-2019:2600.

See Also

http://www.nessus.org/u?167c3ca8

https://access.redhat.com/articles/4329821

https://access.redhat.com/errata/RHSA-2019:2600

https://access.redhat.com/security/updates/classification/#important

https://bugzilla.redhat.com/show_bug.cgi?id=1701224

https://bugzilla.redhat.com/show_bug.cgi?id=1724389

Plugin Details

Severity: High

ID: 128495

File Name: redhat-RHSA-2019-2600.nasl

Version: 1.10

Type: local

Agent: unix

Published: 9/4/2019

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: Important

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-2019-9500

CVSS v3

Risk Factor: High

Base Score: 8.3

Temporal Score: 7.5

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:bpftool, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux: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: 9/3/2019

Vulnerability Publication Date: 9/3/2019

Reference Information

CVE: CVE-2019-1125, CVE-2019-9500

CWE: 122, 200

RHSA: 2019:2600