Detections
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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4528)

medium Nessus Plugin ID 121566

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4528 advisory.

 - userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered (Andrea Arcangeli) [Orabug: 29163750] {CVE-2018-18397}
 - userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas (Andrea Arcangeli) [Orabug:
 29163750] {CVE-2018-18397}
 - Change mincore() to count 'mapped' pages rather than 'cached' pages (Linus Torvalds) [Orabug: 29187415] {CVE-2019-5489}

Tenable has extracted the preceding description block directly from the Oracle 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 affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2019-4528.html

Plugin Details

Severity: Medium

ID: 121566

File Name: oraclelinux_ELSA-2019-4528.nasl

Version: 1.14

Type: local

Agent: unix

Published: 2/4/2019

Updated: 10/22/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2019-5489

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-uek-debug-devel, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug, cpe:/o:oracle:linux:6

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/OracleLinux

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/31/2019

Vulnerability Publication Date: 10/22/2018

Reference Information

CVE: CVE-2018-18397, CVE-2019-5489

IAVA: 2020-A-0325-S