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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2019-4575)

high Nessus Plugin ID 122803

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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-2019-4575 advisory.

 - ext4: only look at the bg_flags field if it is valid (Theodore Tso) [Orabug: 29316684] {CVE-2018-10876} {CVE-2018-10876}
 - net: Set sk_prot_creator when cloning sockets to the right proto (Christoph Paasch) [Orabug: 29422739] {CVE-2018-9568}
 - ext4: always check block group bounds in ext4_init_block_bitmap() (Theodore Tso) [Orabug: 29428607] {CVE-2018-10878}
 - ext4: make sure bitmaps and the inode table dont overlap with bg descriptors (Theodore Tso) [Orabug:
 29428607] {CVE-2018-10878}
 - vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags (David Howells) [Orabug: 29428607] {CVE-2018-10878}
 - KEYS: add missing permission check for request_key() destination (Eric Biggers) [Orabug: 29304551] {CVE-2017-17807}
 - KEYS: Dont permit request_key() to construct a new keyring (David Howells) [Orabug: 29304551] {CVE-2017-17807}
 - mm: cleancache: fix corruption on missed inode invalidation (Pavel Tikhomirov) [Orabug: 29364670] {CVE-2018-16862}
 - net/packet: fix a race in packet_bind() and packet_notifier() (Eric Dumazet) [Orabug: 29385593] {CVE-2018-18559}
 - ext4: verify the depth of extent tree in ext4_find_extent() (Theodore Tso) [Orabug: 29396712] {CVE-2018-10877} {CVE-2018-10877}

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-2019-4575.html

Plugin Details

Severity: High

ID: 122803

File Name: oraclelinux_ELSA-2019-4575.nasl

Version: 1.13

Type: local

Agent: unix

Published: 3/13/2019

Updated: 10/23/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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: 8.1

Temporal Score: 7.3

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

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

CVSS Score Source: CVE-2018-18559

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/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/12/2019

Vulnerability Publication Date: 9/28/2017

Reference Information

CVE: CVE-2017-17807, CVE-2018-10876, CVE-2018-10877, CVE-2018-10878, CVE-2018-16862, CVE-2018-18559, CVE-2018-9568