exploit the possibilities

Red Hat Security Advisory 2018-2790-01

Red Hat Security Advisory 2018-2790-01
Posted Sep 25, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-2790-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2018-5390
MD5 | fd220d3249680a71d35957f6fa679e38

Red Hat Security Advisory 2018-2790-01

Change Mirror Download
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2018:2790-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2790
Issue date: 2018-09-25
CVE Names: CVE-2018-5390
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.2
Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP
Solutions.

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 Server AUS (v. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.2) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.2) - noarch, x86_64

3. Description:

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

Security Fix(es):

* A flaw named SegmentSmack was found in the way the Linux kernel handled
specially crafted TCP packets. A remote attacker could use this flaw to
trigger time and calculation expensive calls to tcp_collapse_ofo_queue()
and tcp_prune_ofo_queue() functions by sending specially modified packets
within ongoing TCP sessions which could lead to a CPU saturation and hence
a denial of service on the system. Maintaining the denial of service
condition requires continuous two-way TCP sessions to a reachable open
port, thus the attacks cannot be performed using spoofed IP addresses.
(CVE-2018-5390)

Red Hat would like to thank Juha-Matti Tilli (Aalto University - Department
of Communications and Networking and Nokia Bell Labs) for reporting this
issue.

Bug Fix(es):

* Previously, the early microcode updater in the kernel was trying to
perform a microcode update on virtualized guests. As a consequence, the
virtualized guests sometimes mishandled the request to perform the
microcode update and became unresponsive in the early boot stage. This
update applies an upstream patch to avoid the early microcode update when
running under a hypervisor. As a result, no kernel freezes appear in the
described scenario. (BZ#1618386)

4. Solution:

For details on how to apply this update, refer to:

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

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

1601704 - CVE-2018-5390 kernel: TCP segments with random offsets allow a remote denial of service (SegmentSmack)

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.2):

Source:
kernel-3.10.0-327.73.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.73.1.el7.noarch.rpm
kernel-doc-3.10.0-327.73.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.73.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.73.1.el7.x86_64.rpm
perf-3.10.0-327.73.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.2):

Source:
kernel-3.10.0-327.73.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.73.1.el7.noarch.rpm
kernel-doc-3.10.0-327.73.1.el7.noarch.rpm

ppc64le:
kernel-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debug-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-devel-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-headers-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-tools-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-327.73.1.el7.ppc64le.rpm
perf-3.10.0-327.73.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
python-perf-3.10.0-327.73.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm

x86_64:
kernel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.73.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.73.1.el7.x86_64.rpm
perf-3.10.0-327.73.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 7.2):

Source:
kernel-3.10.0-327.73.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-327.73.1.el7.noarch.rpm
kernel-doc-3.10.0-327.73.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.73.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.73.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.73.1.el7.x86_64.rpm
perf-3.10.0-327.73.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.2):

x86_64:
kernel-debug-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.73.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.2):

ppc64le:
kernel-debug-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-327.73.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.73.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.2):

x86_64:
kernel-debug-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.73.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.73.1.el7.x86_64.rpm

These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2018-5390
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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MH0b
-----END PGP SIGNATURE-----

--
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce

Comments

RSS Feed Subscribe to this comment feed

No comments yet, be the first!

Login or Register to post a comment

File Archive:

June 2019

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Jun 1st
    1 Files
  • 2
    Jun 2nd
    2 Files
  • 3
    Jun 3rd
    19 Files
  • 4
    Jun 4th
    21 Files
  • 5
    Jun 5th
    15 Files
  • 6
    Jun 6th
    12 Files
  • 7
    Jun 7th
    11 Files
  • 8
    Jun 8th
    1 Files
  • 9
    Jun 9th
    1 Files
  • 10
    Jun 10th
    15 Files
  • 11
    Jun 11th
    15 Files
  • 12
    Jun 12th
    15 Files
  • 13
    Jun 13th
    8 Files
  • 14
    Jun 14th
    16 Files
  • 15
    Jun 15th
    2 Files
  • 16
    Jun 16th
    1 Files
  • 17
    Jun 17th
    18 Files
  • 18
    Jun 18th
    15 Files
  • 19
    Jun 19th
    15 Files
  • 20
    Jun 20th
    0 Files
  • 21
    Jun 21st
    0 Files
  • 22
    Jun 22nd
    0 Files
  • 23
    Jun 23rd
    0 Files
  • 24
    Jun 24th
    0 Files
  • 25
    Jun 25th
    0 Files
  • 26
    Jun 26th
    0 Files
  • 27
    Jun 27th
    0 Files
  • 28
    Jun 28th
    0 Files
  • 29
    Jun 29th
    0 Files
  • 30
    Jun 30th
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2019 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close