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CentOS 6 : kernel (RHSA-2020:4182)

high Nessus Plugin ID 142651

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Synopsis

The remote CentOS Linux host is missing a security update.

Description

The remote CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:4182 advisory.

 - The Linux kernel before 5.1-rc5 allows page->_refcount reference count overflow, with resultant use-after- free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests. (CVE-2019-11487)

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 kernel-kdump and / or kernel-kdump-devel packages.

See Also

https://access.redhat.com/errata/RHSA-2020:4182

Plugin Details

Severity: High

ID: 142651

File Name: centos_RHSA-2020-4182.nasl

Version: 1.6

Type: local

Agent: unix

Published: 11/9/2020

Updated: 10/9/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2019-11487

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

CPE: cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:kernel-kdump, p-cpe:/a:centos:centos:kernel-kdump-devel

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CentOS/release, Host/CentOS/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 11/9/2020

Vulnerability Publication Date: 4/23/2019

Reference Information

CVE: CVE-2019-11487

BID: 108054

RHSA: 2020:4182