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Red Hat Product Errata RHSA-2018:1525 - Security Advisory
Issued:
2018-05-15
Updated:
2018-05-15

RHSA-2018:1525 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: rhvm-appliance security and enhancement update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for rhvm-appliance is now available for Red Hat Virtualization 4 for RHEL-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.

Description

The RHV-M Virtual Appliance automates the process of installing and configuring the Red Hat Virtualization Manager. The appliance is available to download as an OVA file from the Customer Portal.

The following packages have been upgraded to a later upstream version: rhvm-appliance (4.2). (BZ#1558801, BZ#1563545)

Security Fix(es):

  • python-paramiko: Authentication bypass in transport.py (CVE-2018-7750)
  • slf4j: Deserialisation vulnerability in EventData constructor can allow for arbitrary code execution (CVE-2018-8088)
  • undertow: Client can use bogus uri in Digest authentication (CVE-2017-12196)
  • jackson-databind: unsafe deserialization due to incomplete blacklist (incomplete fix for CVE-2017-7525 and CVE-2017-17485) (CVE-2018-5968)
  • ovirt-engine: account enumeration through login to web console (CVE-2018-1073)

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 Chris McCown for reporting CVE-2018-8088. The CVE-2017-12196 issue was discovered by Jan Stourac (Red Hat).

Enhancement(s):

  • Previously, the default memory allotment for the RHV-M Virtual Appliance was always large enough to include support for user additions.

In this release, the RHV-M Virtual Appliance includes a swap partition that enables the memory to be increased when required. (BZ#1422982)

  • Previously, the partitioning scheme for the RHV-M Virtual Appliance included two primary partitions, "/" and swap.

In this release, the disk partitioning scheme has been modified to match the scheme specified by NIST. The updated disk partitions are as follows:

/boot 1G (primary)
/home 1G (lvm)
/tmp 2G (lvm)
/var 20G (lvm)
/var/log 10G (lvm)
/var/log/audit 1G (lvm)
swap 8G (lvm)
/ 6G (primary) (BZ#1463853)

  • Previously, the version tag was used as part of the RPM's naming scheme, for example, "4.1.timestamp", which created differences between the upstream and downstream versioning schemes. In this release, the downstream versioning scheme is aligned with the upstream scheme and the timestamp has moved from the version tag to the release tag. (BZ#1464486)

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

Affected Products

  • Red Hat Virtualization 4 for RHEL 7 x86_64
  • Red Hat Virtualization Host 4 for RHEL 7 x86_64

Fixes

  • BZ - 1422982 - [RFE] add swap to rhevm-appliance
  • BZ - 1463853 - [RFE] RHV-M appliance should meet NIST 800-53 partitioning requirements
  • BZ - 1464486 - [RFE] Align versioning schema with upstream
  • BZ - 1467946 - rhvm-appliance only partitions 6gb for root partition
  • BZ - 1476755 - Red Hat Insights reports permissions problem on /var/log/cron
  • BZ - 1503055 - CVE-2017-12196 undertow: Client can use bogus uri in Digest authentication
  • BZ - 1538332 - CVE-2018-5968 jackson-databind: unsafe deserialization due to incomplete blacklist (incomplete fix for CVE-2017-7525 and CVE-2017-17485)
  • BZ - 1548909 - CVE-2018-8088 slf4j: Deserialisation vulnerability in EventData constructor can allow for arbitrary code execution
  • BZ - 1553525 - CVE-2018-1073 ovirt-engine: account enumeration through login to web console
  • BZ - 1557130 - CVE-2018-7750 python-paramiko: Authentication bypass in transport.py
  • BZ - 1561888 - ovirt-hosted-engine-setup and cockpit-ovirt do not agree about the minimum size for HE storage
  • BZ - 1563737 - Unable to connect via serial console to HE. /bin/sh: Permission denied.

CVEs

  • CVE-2017-12196
  • CVE-2018-1073
  • CVE-2018-1111
  • CVE-2018-5968
  • CVE-2018-7750
  • CVE-2018-8088

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization 4 for RHEL 7

SRPM
rhvm-appliance-4.2-20180504.0.el7.src.rpm SHA-256: 7ced32f7dd984c7e468300339c9b788aa422cdc023c946812b926eb52965c31c
x86_64
rhvm-appliance-4.2-20180504.0.el7.noarch.rpm SHA-256: a17e0f6c8c38c4c0299dec3d6508211078786d2ad1c33e5e067a8a3bd1b71549

Red Hat Virtualization Host 4 for RHEL 7

SRPM
rhvm-appliance-4.2-20180504.0.el7.src.rpm SHA-256: 7ced32f7dd984c7e468300339c9b788aa422cdc023c946812b926eb52965c31c
x86_64
rhvm-appliance-4.2-20180504.0.el7.noarch.rpm SHA-256: a17e0f6c8c38c4c0299dec3d6508211078786d2ad1c33e5e067a8a3bd1b71549

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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