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Red Hat Security Advisory 2019-3887-01

Red Hat Security Advisory 2019-3887-01
Posted Nov 15, 2019
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2019-3887-01 - The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. An arbitrary kernel memory write vulnerability was addressed.

tags | advisory, arbitrary, kernel
systems | linux, redhat
advisories | CVE-2019-0155
SHA-256 | 9ab632ed83bbabd23d67d2fd5c9c984382c8bc06cc07fd1d01578bb99eb07cd0

Red Hat Security Advisory 2019-3887-01

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

Synopsis: Important: kernel-rt security update
Advisory ID: RHSA-2019:3887-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3887
Issue date: 2019-11-14
CVE Names: CVE-2019-0155
=====================================================================

1. Summary:

An update for kernel-rt 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 Realtime (v. 7) - noarch, x86_64
Red Hat Enterprise Linux for Real Time for NFV (v. 7) - noarch, x86_64

3. Description:

The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* hardware: Intel GPU blitter manipulation can allow for arbitrary kernel
memory write (CVE-2019-0155)

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.

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/):

1724398 - CVE-2019-0155 hw: Intel GPU blitter manipulation can allow for arbitrary kernel memory write

6. Package List:

Red Hat Enterprise Linux for Real Time for NFV (v. 7):

Source:
kernel-rt-3.10.0-1062.4.3.rt56.1029.el7.src.rpm

noarch:
kernel-rt-doc-3.10.0-1062.4.3.rt56.1029.el7.noarch.rpm

x86_64:
kernel-rt-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-devel-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm

Red Hat Enterprise Linux Realtime (v. 7):

Source:
kernel-rt-3.10.0-1062.4.3.rt56.1029.el7.src.rpm

noarch:
kernel-rt-doc-3.10.0-1062.4.3.rt56.1029.el7.noarch.rpm

x86_64:
kernel-rt-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-devel-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-1062.4.3.rt56.1029.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-1062.4.3.rt56.1029.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-2019-0155
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/solutions/i915-graphics

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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