Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2019-4577)

high Nessus Plugin ID 122805

Synopsis

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

Description

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4577 advisory.

- proc: restrict kernel stack dumps to root (John Donnelly) [Orabug: 29114880] {CVE-2018-17972}
- alarmtimer: Prevent overflow for relative nanosleep (Thomas Gleixner) [Orabug: 29269182] {CVE-2018-13053}
- ext4: only look at the bg_flags field if it is valid (Theodore Ts'o) [Orabug: 29409428] {CVE-2018-10876} {CVE-2018-10876}
- vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags (David Howells) [Orabug: 29409428] {CVE-2018-10876}

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-2019-4577.html

Plugin Details

Severity: High

ID: 122805

File Name: oraclelinux_ELSA-2019-4577.nasl

Version: 1.12

Type: local

Agent: unix

Published: 3/13/2019

Updated: 11/1/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

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-2018-9568

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:oracle:linux:5, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-debug, 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, 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: 3/12/2019

Vulnerability Publication Date: 9/28/2017

Reference Information

CVE: CVE-2018-10876, CVE-2018-13053, CVE-2018-17972, CVE-2018-9568