Detections
Analytics

Oracle Linux 7 : kernel (ELSA-2019-1168)

medium Nessus Plugin ID 125187

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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-2019-1168 advisory.

 - [x86] x86/speculation/mds: Add SMT warning message (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation: Move arch_smt_update() call to after mitigation decisions (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [documentation] x86/speculation/mds: Add mds=full,nosmt cmdline option (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [kernel] x86/speculation: Remove redundant arch_smt_update() invocation (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Update MDS mitigation status after late microcode load (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Add debugfs x86/smt_present file (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Disable automatic enabling of STIBP with SMT on (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [documentation] Documentation: Add MDS vulnerability documentation (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [documentation] Documentation: Move L1TF to separate directory (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mitigation mode VMWERV (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [base] x86/speculation/mds: Add sysfs reporting for MDS (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mitigation control for MDS (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Conditionally clear CPU buffers on idle entry (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [kvm] x86/kvm/vmx: Add MDS protection when L1D Flush is not active (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Clear CPU buffers on exit to user (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add mds_clear_cpu_buffers() (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [kvm] x86/kvm: Expose X86_FEATURE_MD_CLEAR to guests (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add BUG_MSBDS_ONLY (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation/mds: Add basic bug infrastructure for MDS (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/speculation: Consolidate CPU whitelists (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/msr-index: Cleanup bit defines (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/l1tf: Show actual SMT state (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/speculation: Simplify sysfs report of VMX L1TF vulnerability (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/speculation: Rework SMT state change (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [kernel] sched/smt: Expose sched_smt_present static key (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [kernel] sched/smt: Make sched_smt_present track topology (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/speculation: Disable STIBP when enhanced IBRS is in use (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/speculation: Move STIPB/IBPB string conditionals out of cpu_show_common() (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/speculation: Enable cross-hyperthread spectre v2 STIBP mitigation (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spectre_v2: Make spectre_v2_mitigation mode available (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Add X86_FEATURE_USE_IBPB (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12127 CVE-2018-12130}
 - [x86] x86/spec_ctrl: Add casting to fix compilation error (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}
 - [x86] x86/cpu: Sanitize FAM6_ATOM naming (Waiman Long) [1692597 1692598 1692599 1690335 1690348 1690358] {CVE-2018-12126 CVE-2018-12130 CVE-2018-12127}

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-2019-1168.html

Plugin Details

Severity: Medium

ID: 125187

File Name: oraclelinux_ELSA-2019-1168.nasl

Version: 1.9

Type: local

Agent: unix

Published: 5/16/2019

Updated: 10/22/2024

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: 5.6

Temporal Score: 5.1

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

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

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-abi-whitelists, p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:perf, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel

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: 5/15/2019

Vulnerability Publication Date: 5/7/2019

Reference Information

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

RHSA: 2019:1168