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Oracle Linux 7 : kernel (ELSA-2018-1629)

medium Nessus Plugin ID 109977

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Synopsis

The remote Oracle Linux host is missing a security update.

Description

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2018-1629 advisory.

 - [x86] spec_ctrl: Fix late microcode problem with AMD (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] entry: Add missing '$' in IBRS macros (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] spec_ctrl: Clean up entry code & remove unused APIs (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] spec_ctrl: Mask off SPEC_CTRL MSR bits that are managed by kernel (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] spec_ctrl: add support for SSBD to RHEL IBRS entry/exit macros (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [fs] proc: Use CamelCase for SSBD (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] bugs: Rename _RDS to _SSBD (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [kernel] seccomp: Enable speculation flaw mitigations (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [fs] proc: Provide details on speculation flaw mitigations (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] nospec: Allow getting/setting on non-current task (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] speculation: Add prctl for Speculative Store Bypass mitigation (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] process: Allow runtime control of Speculative Store Bypass (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [uapi] prctl: Add speculation control prctls (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] kvm/vmx: Expose SPEC_CTRL Bit(2) to the guest (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] bugs/amd: Add support to disable RDS on Fam[15, 16, 17]h if requested (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] spec_ctrl: Sync up RDS setting with IBRS code (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] bugs: Provide boot parameters for the spec_store_bypass_disable mitigation (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] bugs: Expose /sys/../spec_store_bypass (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] bugs: Read SPEC_CTRL MSR during boot and re-use (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] spec_ctrl: Use separate PCP variables for IBRS entry and exit (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] cpufeatures: Make CPU bugs sticky (Waiman Long) [1566904 1566905] {CVE-2018-3639}
 - [x86] kvm: fix icebp instruction handling (Paolo Bonzini) [1566849 1566845] {CVE-2018-1087}
 - [x86] entry/64: Don't use IST entry for #BP stack (Paolo Bonzini) [1567084 1567083] {CVE-2018-8897}

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-2018-1629.html

Plugin Details

Severity: Medium

ID: 109977

File Name: oraclelinux_ELSA-2018-1629.nasl

Version: 1.15

Type: local

Agent: unix

Published: 5/23/2018

Updated: 10/22/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Low

Base Score: 2.1

Temporal Score: 1.6

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

CVSS Score Source: CVE-2018-3639

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/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: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/OracleLinux, Host/RedHat/release, Host/RedHat/rpm-list, Host/local_checks_enabled

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 5/22/2018

Vulnerability Publication Date: 5/21/2018

Reference Information

CVE: CVE-2018-3639

RHSA: 2018:1629