RHEL 7 : kernel-alt (RHSA-2020:3545)

medium Nessus Plugin ID 139809

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-2020:3545 advisory.

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

* kernel: Denial Of Service in the __ipmi_bmc_register() function in drivers/char/ipmi/ipmi_msghandler.c (CVE-2019-19046)

* kernel: Buffer over-read in crypto_authenc_extractkeys() when a payload longer than 4 bytes is not aligned. (CVE-2020-10769)

* kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

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):

* list corruption in iscsi_queuecommand (BZ#1839622)

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-alt package based on the guidance in RHSA-2020:3545.

See Also

http://www.nessus.org/u?631617be

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

https://access.redhat.com/errata/RHSA-2020:3545

https://bugzilla.redhat.com/show_bug.cgi?id=1708775

https://bugzilla.redhat.com/show_bug.cgi?id=1774988

https://bugzilla.redhat.com/show_bug.cgi?id=1832543

Plugin Details

Severity: Medium

ID: 139809

File Name: redhat-RHSA-2020-3545.nasl

Version: 1.12

Type: local

Agent: unix

Published: 8/26/2020

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: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2019-19046

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

Vulnerability Information

CPE: 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-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-alt, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, 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: 8/25/2020

Vulnerability Publication Date: 11/18/2019

Reference Information

CVE: CVE-2019-19046, CVE-2020-10769, CVE-2020-12655

CWE: 119, 400, 835

RHSA: 2020:3545