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Oracle Linux 7 : kernel (ELSA-2019-0163)

high Nessus Plugin ID 121496

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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-2019-0163 advisory.

 - [fs] userfaultfd: check VM_MAYWRITE was set after verifying the uffd is registered (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: allow get_mempolicy(MPOL_F_NODE|MPOL_F_ADDR) to trigger userfaults (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: shmem: uffdio_copy: set the page dirty if VM_WRITE is not set (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: shmem: add i_size checks (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: shmem/hugetlbfs: only allow to register VM_MAYWRITE vmas (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: shmem: allocate anonymous memory for MAP_PRIVATE shmem (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: use ENOENT instead of EFAULT if the atomic copy user fails (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [fs] userfaultfd: disable irqs when taking the waitqueue lock (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [fs] userfaultfd.c: remove redundant pointer uwq (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [fs] userfaultfd: remove uffd flags from vma->vm_flags if UFFD_EVENT_FORK fails (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [fs] userfaultfd: hugetlbfs: fix userfaultfd_huge_must_wait() pte access (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [mm] userfaultfd: prevent non-cooperative events vs mcopy_atomic races (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [fs] userfaultfd: convert to use anon_inode_getfd() (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [fs] mm, userfaultfd, thp: avoid waiting when PMD under THP migration (Andrea Arcangeli) [1640518 1640519] {CVE-2018-18397}
 - [net] packet: fix a race in packet_bind() and packet_notifier() (Andrea Claudi) [1643680 1643681] {CVE-2018-18559}
 - [net] rtnetlink: give a user socket to get_target_net() (Jiri Benc) [1639635 1630694] {CVE-2018-14646}

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-2019-0163.html

Plugin Details

Severity: High

ID: 121496

File Name: oraclelinux_ELSA-2019-0163.nasl

Version: 1.9

Type: local

Agent: unix

Published: 1/31/2019

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: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2018-18559

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/29/2019

Vulnerability Publication Date: 6/15/2018

Reference Information

CVE: CVE-2018-18397, CVE-2018-18559

RHSA: 2019:0163