Executive Summary

Summary
Titlekernel security, bug fix, and enhancement update
Informations
NameRHSA-2019:0163First vendor Publication2019-01-29
VendorRedHatLast vendor Modification2019-01-29
Severity (Vendor) N/ARevision01

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:N/C:P/I:P/A:P)
Cvss Base Score6.8Attack RangeNetwork
Cvss Impact Score6.4Attack ComplexityMedium
Cvss Expoit Score8.6AuthenticationNone Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for kernel is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: Use-after-free due to race condition in AF_PACKET implementation (CVE-2018-18559)

* kernel: userfaultfd bypasses tmpfs file permissions (CVE-2018-18397)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

These updated kernel packages include also numerous bug fixes and enhancements. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article: https://access.redhat.com/articles/3827321

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.

5. Bugs fixed (https://bugzilla.redhat.com/):

1641548 - CVE-2018-18397 kernel: userfaultfd bypasses tmpfs file permissions 1641878 - CVE-2018-18559 kernel: Use-after-free due to race condition in AF_PACKET implementation

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2019-0163.html

CWE : Common Weakness Enumeration

%idName
50 %CWE-362Race Condition
50 %CWE-284Access Control (Authorization) Issues

CPE : Common Platform Enumeration

TypeDescriptionCount
Os3
Os2986
Os1
Os1
Os1
Os2
Os1
Os1
Os1

Nessus® Vulnerability Scanner

DateDescription
2019-01-11Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZA-2018-077.nasl - Type : ACT_GATHER_INFO

Alert History

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0
DateInformations
2019-01-29 21:18:38
  • First insertion