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Red Hat Security Advisory 2020-3804-01

Red Hat Security Advisory 2020-3804-01
Posted Sep 22, 2020
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2020-3804-01 - 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-2018-1120
SHA-256 | 90844f0cf711442a43c5aca4e826ffb0bd2a94bedeed4f1b0e81a1b1ab6217c7

Red Hat Security Advisory 2020-3804-01

Change Mirror Download
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Hash: SHA256

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

Synopsis: Moderate: kernel security and bug fix update
Advisory ID: RHSA-2020:3804-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3804
Issue date: 2020-09-22
CVE Names: CVE-2018-1120
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.4
Advanced Update Support, Red Hat Enterprise Linux 7.4 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.4 Update Services for SAP
Solutions.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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. 7.4) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.4) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.4) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.4) - noarch, x86_64

3. Description:

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

Security Fix(es):

* kernel: fuse-backed file mmap-ed onto process cmdline arguments causes
denial of service (CVE-2018-1120)

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

Bug Fix(es):

* [RHEL-7.9] Kdump failed to start when secure boot enabled:
kexec_file_load failed: Required key not available (BZ#1866968)

* Kernel bug report in cgroups on heavily contested 3.10 node (BZ#1869506)

* System gets crashed with hard lockup after a corruption found in wait
queue list [bnx2fc] (BZ#1870595)

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/):

1575472 - CVE-2018-1120 kernel: fuse-backed file mmap-ed onto process cmdline arguments causes denial of service

6. Package List:

Red Hat Enterprise Linux Server AUS (v. 7.4):

Source:
kernel-3.10.0-693.76.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.76.1.el7.noarch.rpm
kernel-doc-3.10.0-693.76.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.76.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.76.1.el7.x86_64.rpm
perf-3.10.0-693.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server E4S (v. 7.4):

Source:
kernel-3.10.0-693.76.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.76.1.el7.noarch.rpm
kernel-doc-3.10.0-693.76.1.el7.noarch.rpm

ppc64le:
kernel-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debug-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-devel-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-headers-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-tools-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.76.1.el7.ppc64le.rpm
perf-3.10.0-693.76.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
python-perf-3.10.0-693.76.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm

x86_64:
kernel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.76.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.76.1.el7.x86_64.rpm
perf-3.10.0-693.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server TUS (v. 7.4):

Source:
kernel-3.10.0-693.76.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.76.1.el7.noarch.rpm
kernel-doc-3.10.0-693.76.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.76.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.76.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.76.1.el7.x86_64.rpm
perf-3.10.0-693.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional AUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional E4S (v. 7.4):

ppc64le:
kernel-debug-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.76.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional TUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.76.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.76.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.76.1.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-2018-1120
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

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

Copyright 2020 Red Hat, Inc.
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