Detections
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Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2019-4643)

medium Nessus Plugin ID 125236

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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-2019-4643 advisory.

 - x86/mds: Add empty commit for CVE-2019-11091 (Konrad Rzeszutek Wilk) [Orabug: 29721848] {CVE-2019-11091}
 - x86/speculation/mds: Make mds_mitigation mutable after init (Konrad Rzeszutek Wilk) [Orabug: 29721835] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation: Support 'mitigations=' cmdline option (Josh Poimboeuf) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - cpu/speculation: Add 'mitigations=' cmdline option (Josh Poimboeuf) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Print SMT vulnerable on MSBDS with mitigations off (Konrad Rzeszutek Wilk) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Fix comment (Boris Ostrovsky) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add debugfs for controlling MDS (Kanth Ghatraju) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add boot option to enable MDS protection only while in idle (Boris Ostrovsky) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add SMT warning message (Josh Poimboeuf) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation: Move arch_smt_update() call to after mitigation decisions (Josh Poimboeuf) [Orabug:
 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add mds=full,nosmt cmdline option (Josh Poimboeuf) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - Documentation: Add MDS vulnerability documentation (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - Documentation: Move L1TF to separate directory (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add mitigation mode VMWERV (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add sysfs reporting for MDS (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add mitigation control for MDS (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Conditionally clear CPU buffers on idle entry (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/kvm/vmx: Add MDS protection when L1D Flush is not active (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Clear CPU buffers on exit to user (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add mds_clear_cpu_buffers() (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests (Andi Kleen) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add BUG_MSBDS_ONLY (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation/mds: Add basic bug infrastructure for MDS (Andi Kleen) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127} {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation: Consolidate CPU whitelists (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/msr-index: Cleanup bit defines (Thomas Gleixner) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127} file (Will Deacon) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/cpu: Sanitize FAM6_ATOM naming (Peter Zijlstra) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - Documentation/l1tf: Fix small spelling typo (Salvatore Bonaccorso) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - x86/speculation: Simplify the CPU bug detection logic (Dominik Brodowski) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - tools include: Adopt linux/bits.h (Arnaldo Carvalho de Melo) [Orabug: 29526899] {CVE-2018-12126} {CVE-2018-12130} {CVE-2018-12127}
 - USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data (Hui Peng) [Orabug: 29613788] {CVE-2018-19985} {CVE-2018-19985}
 - mm: hwpoison: fix thp split handing in soft_offline_in_use_page() (zhongjiang) [Orabug: 29613794] {CVE-2019-10124}

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-2019-4643.html

Plugin Details

Severity: Medium

ID: 125236

File Name: oraclelinux_ELSA-2019-4643.nasl

Version: 1.12

Type: local

Agent: unix

Published: 5/17/2019

Updated: 2/18/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: Medium

Base Score: 4.7

Temporal Score: 3.7

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

CVSS Score Source: CVE-2019-11091

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.9

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

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

CVSS Score Source: manual

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: 5/16/2019

Vulnerability Publication Date: 12/12/2018

Reference Information

CVE: CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2018-19985, CVE-2019-10124, CVE-2019-11091

IAVA: 2019-A-0166