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Red Hat: RHSA-2018:0412 Important: Kernel-RT Security Update
red hat
March 6, 2018
An update for kernel-rt is now available for Red Hat Enterprise Linux 7
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.
Summary
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* Kernel: KVM: MMU potential stack buffer overrun during page walks
(CVE-2017-12188, Important)
* Kernel: KVM: debug exception via syscall emulation (CVE-2017-7518,
Moderate)
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-693.21.1 source
tree, which provides a number of bug fixes over the previous version.
(BZ#1537671)
References
https://access.redhat.com/security/cve/CVE-2017-7518 https://access.redhat.com/security/cve/CVE-2017-12188 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source:
kernel-rt-3.10.0-693.21.1.rt56.639.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source:
kernel-rt-3.10.0-693.21.1.rt56.639.el7.src.rpm
noarch:
Read the Full Advisory
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Severity
important
Lowest
Low
Medium
High
Critical
Advisory ID: RHSA-2018:0412-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0412
Issue date: 2018-03-06
Topic
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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
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
Bugs Fixed
1464473 - CVE-2017-7518 Kernel: KVM: debug exception via syscall emulation
1500380 - CVE-2017-12188 Kernel: KVM: MMU potential stack buffer overrun during page walks
1537671 - kernel-rt: update to the RHEL7.4.z batch#5 source tree
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