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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2018-4210)

high Nessus Plugin ID 117378

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2018-4210 advisory.

 - x86/entry/64: Ensure %ebx handling correct in xen_failsafe_callback (George Kennedy) [Orabug: 28402927] {CVE-2018-14678}
 - x86/speculation/l1tf: Increase l1tf memory limit for Nehalem+ (Andi Kleen) [Orabug: 28488808] {CVE-2018-3620}
 - x86/speculation/l1tf: Suggest what to do on systems with too much RAM (Vlastimil Babka) [Orabug:
 28488808] {CVE-2018-3620}
 - x86/speculation/l1tf: Fix off-by-one error when warning that system has too much RAM (Vlastimil Babka) [Orabug: 28488808] {CVE-2018-3620}
 - x86/speculation/l1tf: Fix overflow in l1tf_pfn_limit() on 32bit (Vlastimil Babka) [Orabug: 28488808] {CVE-2018-3620}
 - x86/speculation/l1tf: Exempt zeroed PTEs from inversion (Sean Christopherson) [Orabug: 28488808] {CVE-2018-3620}
 - x86/l1tf: Fix build error seen if CONFIG_KVM_INTEL is disabled (Guenter Roeck) [Orabug: 28488808] {CVE-2018-3620}
 - x86/spectre: Add missing family 6 check to microcode check (Andi Kleen) [Orabug: 28488808] {CVE-2018-3620}
 - KVM: x86: SVM: Call x86_spec_ctrl_set_guest/host() with interrupts disabled (Thomas Gleixner) [Orabug:
 28488808] {CVE-2018-3646}
 - x86/microcode: Allow late microcode loading with SMT disabled (Josh Poimboeuf) [Orabug: 28488808] {CVE-2018-3620}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

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 packages.

See Also

https://linux.oracle.com/errata/ELSA-2018-4210.html

Plugin Details

Severity: High

ID: 117378

File Name: oraclelinux_ELSA-2018-4210.nasl

Version: 1.10

Type: local

Agent: unix

Published: 9/10/2018

Updated: 10/22/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2018-14678

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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:U/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 Ease: No known exploits are available

Patch Publication Date: 9/6/2018

Vulnerability Publication Date: 7/25/2018

Reference Information

CVE: CVE-2018-14678

IAVB: 2018-B-0111-S