Detections
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Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2019-4541)

high Nessus Plugin ID 122141

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Synopsis

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

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4541 advisory.

 - proc: restrict kernel stack dumps to root (Jann Horn) [Orabug: 29114876] {CVE-2018-17972}
 - alarmtimer: Prevent overflow for relative nanosleep (Thomas Gleixner) [Orabug: 29269148] {CVE-2018-13053}
 - KVM: Fix UAF in nested posted interrupt processing (Cfir Cohen) [Orabug: 29172125] {CVE-2018-16882}
 - Change mincore() to count 'mapped' pages rather than 'cached' pages (Linus Torvalds) [Orabug: 29187408] {CVE-2019-5489}
 - userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered (Andrea Arcangeli) [Orabug: 29163742] {CVE-2018-18397}
 - userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas (Andrea Arcangeli) [Orabug:
 29163742] {CVE-2018-18397}

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-2019-4541.html

Plugin Details

Severity: High

ID: 122141

File Name: oraclelinux_ELSA-2019-4541.nasl

Version: 1.15

Type: local

Agent: unix

Published: 2/13/2019

Updated: 11/1/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.5

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-2018-16882

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:L/AC:L/PR:L/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:oracle:linux:kernel-uek-headers, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:perf, p-cpe:/a:oracle:linux:kernel-uek-devel, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-uek-tools-libs-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-uek-tools, p-cpe:/a:oracle:linux:kernel-uek-tools-libs, p-cpe:/a:oracle:linux:kernel-uek, p-cpe:/a:oracle:linux:kernel-uek-debug

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: 2/12/2019

Vulnerability Publication Date: 6/27/2018

Reference Information

CVE: CVE-2018-13053, CVE-2018-16882, CVE-2018-17972, CVE-2018-18397, CVE-2019-5489

IAVA: 2020-A-0325-S