[RHSA-2017:2473-01] Important: kernel security and bug fix update
Security announcements for all Red Hat products and services.
rhsa-announce at redhat.com
Tue Aug 15 11:46:19 UTC 2017
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Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2017:2473-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:2473
Issue date: 2017-08-15
CVE Names: CVE-2017-7533
=====================================================================
1. Summary:
An update for kernel 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 Client (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* A race condition was found in the Linux kernel, present since v3.14-rc1
through v4.12. The race happens between threads of inotify_handle_event()
and vfs_rename() while running the rename operation against the same file.
As a result of the race the next slab data or the slab's free list pointer
can be corrupted with attacker-controlled data. (CVE-2017-7533, Important)
Red Hat would like to thank Leilei Lin (Alibaba Group), Fan Wu (The
University of Hong Kong), and Shixiong Zhao (The University of Hong Kong)
for reporting this issue.
Bug Fix(es):
* Previously, direct I/O read operations going past EOF returned an invalid
error number, instead of reading 0 bytes and returning success, if these
operations were in same XFS block with EOF. Consequently, creating multiple
VMs from a Red Hat Enterprise Linux 7.4 template caused all the VMs to
become unresponsive in the 'Image Locked' state. This update fixes the
direct I/O feature of the file system, and VMs created from a Red Hat
Enterprise Linux 7.4 template now work as expected. (BZ#1475669)
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/):
1468283 - CVE-2017-7533 kernel: a race between inotify_handle_event() and sys_rename()
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
kernel-3.10.0-693.1.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm
kernel-doc-3.10.0-693.1.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm
perf-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source:
kernel-3.10.0-693.1.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm
kernel-doc-3.10.0-693.1.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm
perf-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
kernel-3.10.0-693.1.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm
kernel-doc-3.10.0-693.1.1.el7.noarch.rpm
ppc64:
kernel-3.10.0-693.1.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debug-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.1.1.el7.ppc64.rpm
kernel-devel-3.10.0-693.1.1.el7.ppc64.rpm
kernel-headers-3.10.0-693.1.1.el7.ppc64.rpm
kernel-tools-3.10.0-693.1.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-693.1.1.el7.ppc64.rpm
perf-3.10.0-693.1.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
python-perf-3.10.0-693.1.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
ppc64le:
kernel-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debug-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-devel-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-headers-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-tools-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.1.1.el7.ppc64le.rpm
perf-3.10.0-693.1.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
python-perf-3.10.0-693.1.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
s390x:
kernel-3.10.0-693.1.1.el7.s390x.rpm
kernel-debug-3.10.0-693.1.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-693.1.1.el7.s390x.rpm
kernel-devel-3.10.0-693.1.1.el7.s390x.rpm
kernel-headers-3.10.0-693.1.1.el7.s390x.rpm
kernel-kdump-3.10.0-693.1.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-693.1.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-693.1.1.el7.s390x.rpm
perf-3.10.0-693.1.1.el7.s390x.rpm
perf-debuginfo-3.10.0-693.1.1.el7.s390x.rpm
python-perf-3.10.0-693.1.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.s390x.rpm
x86_64:
kernel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm
perf-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
noarch:
kernel-doc-3.10.0-693.1.1.el7.noarch.rpm
ppc64:
kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.1.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-693.1.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64.rpm
ppc64le:
kernel-debug-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.1.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
kernel-3.10.0-693.1.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-693.1.1.el7.noarch.rpm
kernel-doc-3.10.0-693.1.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.1.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.1.1.el7.x86_64.rpm
perf-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64:
kernel-debug-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.1.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.1.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.1.1.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-2017-7533
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert at redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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