RedHat: RHSA-2018-1820:01 Important: Red Hat Virtualization security,
Summary
The redhat-virtualization-host packages provide the Red Hat Virtualization
Host. These packages include redhat-release-virtualization-host,
ovirt-node, and rhev-hypervisor. Red Hat Virtualization Hosts (RHVH) are
installed using a special build of Red Hat Enterprise Linux with only the
packages required to host virtual machines. RHVH features a Cockpit user
interface for monitoring the host's resources and performing administrative
tasks.
Security Fix(es):
* procps-ng, procps: Integer overflows leading to heap overflow in
file2strvec (CVE-2018-1124)
* procps-ng, procps: incorrect integer size in proc/alloc.* leading to
truncation / integer overflow issues (CVE-2018-1126)
For more details about the security issue(s), including the impact, a CVSS
score, and other related information, refer to the CVE page(s) listed in
the References section.
Red Hat would like to thank Qualys Research Labs for reporting these
issues.
Bug Fix(es):
* Previously some SELinux %post scripts were not re-executed because
imgbased attempts to re-execute RPM %post scripts which involve SELinux
commands inside a namespace, and some commands failed due to SELinux
namespacing rules.
This update ensures that SELinux contexts inside imgbased update namespaces
now update appropriately, and the scripts are re-executed by remounting
/sys and /sys/fs/selinux inside the update namespace. (BZ#1571607)
* Previously, vmcore files that were created by kdump were not relabelled
by kdumpctl after a reboot. As a result, Rsync returned an error when
trying to remove the security.selinux attribute while syncing unlabelled
files, as this is forbidden by selinux.
In this release, restorecon is run on the source directory before syncing
it, which enables the files to be synchronized with the correct labels.
(BZ#1579141)
Enhancement(s):
* Previously, imgbased filtered out stderr from LVM commands to improve
parsing reliability. In this release, imgbased now logs stderr from LVM
commands in order to provide this information in the imgbased logs, for
example during an upgrade failure. (BZ#1574187)
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/2974891
References
https://access.redhat.com/security/cve/CVE-2018-1124 https://access.redhat.com/security/cve/CVE-2018-1126 https://access.redhat.com/security/updates/classification/#important
Package List
Red Hat Virtualization 4 Hypervisor for RHEL 7:
Source:
redhat-virtualization-host-4.2-20180531.0.el7_5.src.rpm
noarch:
redhat-virtualization-host-image-update-4.2-20180531.0.el7_5.noarch.rpm
RHEL 7-based RHEV-H for RHEV 4 (build requirements):
Source:
imgbased-1.0.17-0.1.el7ev.src.rpm
redhat-release-virtualization-host-4.2-3.1.el7.src.rpm
noarch:
imgbased-1.0.17-0.1.el7ev.noarch.rpm
python-imgbased-1.0.17-0.1.el7ev.noarch.rpm
redhat-virtualization-host-image-update-placeholder-4.2-3.1.el7.noarch.rpm
x86_64:
redhat-release-virtualization-host-4.2-3.1.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/
Topic
An update for imgbased, redhat-release-virtualization-host, andredhat-virtualization-host is now available for Red Hat Virtualization 4for RHEL-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.
Topic
Relevant Releases Architectures
RHEL 7-based RHEV-H for RHEV 4 (build requirements) - noarch, x86_64
Red Hat Virtualization 4 Hypervisor for RHEL 7 - noarch
Bugs Fixed
1571607 - Failed to open socket to sanlock daemon
1573334 - RHV-H update to latest version fails on RHV 4.1 due to yum transaction failure
1574187 - [RFE] provide LVM stderr in imgbased if an exception is caught
1575465 - CVE-2018-1124 procps-ng, procps: Integer overflows leading to heap overflow in file2strvec
1575853 - CVE-2018-1126 procps-ng, procps: incorrect integer size in proc/alloc.* leading to truncation / integer overflow issues
1575922 - RHVH 4.2 upgrade failed from 4.1 wrapper to wrapper
1579141 - [RHV4.2] unable to upgrade Host 4.1 (rhvh-4.1-0.20180126.0) to RHVH 4.2 (rhvh-4.2.3.0-0.20180508.0)
1582433 - Upgrade imgbased to 1.0.17