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Red Hat Security Advisory 2019-1973-01

Red Hat Security Advisory 2019-1973-01
Posted Jul 30, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-1973-01 - The kernel-alt packages provide the Linux kernel version 4.x. Issues addressed include a denial of service vulnerability.

tags | advisory, denial of service, kernel
systems | linux, redhat
advisories | CVE-2019-3900
MD5 | c45894be031936589be1c03a57b71b48

Red Hat Security Advisory 2019-1973-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel-alt security and bug fix update
Advisory ID: RHSA-2019:1973-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:1973
Issue date: 2019-07-30
CVE Names: CVE-2019-3900
=====================================================================

1. Summary:

An update for kernel-alt 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 for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, noarch, ppc64le, s390x
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le

3. Description:

The kernel-alt packages provide the Linux kernel version 4.x.

Security Fix(es):

* Kernel: vhost_net: infinite loop while receiving packets leads to DoS
(CVE-2019-3900)

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):

* Pegas1.1 - 7.5-alt s390x kernel oops in update_cfs_rq_h_load (BZ#1557242)

* race of lockd/nfsd inetaddr notifiers with pointers change (BZ#1637541)

* lockd: possible double unregister of inetaddr notifiers (BZ#1637542)

* [Huawei AArch64 7.6 Bug] During the virtual machine migration process,
NFS may trigger a system panic. (BZ#1671943)

* RHEL-Alt-7.6 - jit'd java code on power9 ppc64le experiences stack
corruption (BZ#1707630)

Users of kernel-alt are advised to upgrade to these updated packages, which
fix these bugs.

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/):

1698757 - CVE-2019-3900 Kernel: vhost_net: infinite loop while receiving packets leads to DoS

6. Package List:

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7):

Source:
kernel-alt-4.14.0-115.10.1.el7a.src.rpm

aarch64:
kernel-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debug-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debug-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debug-devel-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-devel-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-headers-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-tools-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-tools-libs-4.14.0-115.10.1.el7a.aarch64.rpm
perf-4.14.0-115.10.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
python-perf-4.14.0-115.10.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm

noarch:
kernel-abi-whitelists-4.14.0-115.10.1.el7a.noarch.rpm
kernel-doc-4.14.0-115.10.1.el7a.noarch.rpm

ppc64le:
kernel-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-bootwrapper-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debug-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debug-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-devel-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-headers-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-tools-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-tools-libs-4.14.0-115.10.1.el7a.ppc64le.rpm
perf-4.14.0-115.10.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
python-perf-4.14.0-115.10.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm

s390x:
kernel-4.14.0-115.10.1.el7a.s390x.rpm
kernel-debug-4.14.0-115.10.1.el7a.s390x.rpm
kernel-debug-debuginfo-4.14.0-115.10.1.el7a.s390x.rpm
kernel-debug-devel-4.14.0-115.10.1.el7a.s390x.rpm
kernel-debuginfo-4.14.0-115.10.1.el7a.s390x.rpm
kernel-debuginfo-common-s390x-4.14.0-115.10.1.el7a.s390x.rpm
kernel-devel-4.14.0-115.10.1.el7a.s390x.rpm
kernel-headers-4.14.0-115.10.1.el7a.s390x.rpm
kernel-kdump-4.14.0-115.10.1.el7a.s390x.rpm
kernel-kdump-debuginfo-4.14.0-115.10.1.el7a.s390x.rpm
kernel-kdump-devel-4.14.0-115.10.1.el7a.s390x.rpm
perf-4.14.0-115.10.1.el7a.s390x.rpm
perf-debuginfo-4.14.0-115.10.1.el7a.s390x.rpm
python-perf-4.14.0-115.10.1.el7a.s390x.rpm
python-perf-debuginfo-4.14.0-115.10.1.el7a.s390x.rpm

Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7):

aarch64:
kernel-debug-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-debuginfo-common-aarch64-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-tools-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
kernel-tools-libs-devel-4.14.0-115.10.1.el7a.aarch64.rpm
perf-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm
python-perf-debuginfo-4.14.0-115.10.1.el7a.aarch64.rpm

noarch:
kernel-doc-4.14.0-115.10.1.el7a.noarch.rpm

ppc64le:
kernel-debug-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debug-devel-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-debuginfo-common-ppc64le-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-tools-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
kernel-tools-libs-devel-4.14.0-115.10.1.el7a.ppc64le.rpm
perf-debuginfo-4.14.0-115.10.1.el7a.ppc64le.rpm
python-perf-debuginfo-4.14.0-115.10.1.el7a.ppc64le.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-2019-3900
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 2019 Red Hat, Inc.
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