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AUSCERT External Security Bulletin Redistribution
ESB-2017.2846
Important: rhvm-appliance security, bug fix, and enhancement update
8 November 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: rhvm-appliance
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Virtualisation
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Increased Privileges -- Existing Account
Access Privileged Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-7536 CVE-2017-7525 CVE-2014-9970
Reference: ESB-2017.2662
ESB-2017.2438
ESB-2017.2217
ESB-2017.2156
ESB-2017.2153
ESB-2017.2034
ESB-2017.1867
Original Bulletin:
https://access.redhat.com/errata/RHSA-2017:3141
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Red Hat Security Advisory
Synopsis: Important: rhvm-appliance security, bug fix, and enhancement update
Advisory ID: RHSA-2017:3141-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2017:3141
Issue date: 2017-11-07
CVE Names: CVE-2014-9970 CVE-2017-7525 CVE-2017-7536
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1. Summary:
An update for rhvm-appliance is now available for RHEV 4.X RHEV-H and
Agents 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.
2. Relevant releases/architectures:
Image Updates for RHV-H - noarch
Management Agent for RHEL 7 Hosts - noarch
3. 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 (20171019.0). (BZ#1496586)
Security Fix(es):
* A deserialization flaw was discovered in the jackson-databind which could
allow an unauthenticated user to perform code execution by sending the
maliciously crafted input to the readValue method of the ObjectMapper.
(CVE-2017-7525)
* A vulnerability was found in Jasypt that would allow an attacker to
perform a timing attack on password hash comparison. (CVE-2014-9970)
* It was found that when the security manager's reflective permissions,
which allows it to access the private members of the class, are granted to
Hibernate Validator, a potential privilege escalation can occur. By
allowing the calling code to access those private members without the
permission an attacker may be able to validate an invalid instance and
access the private member value via ConstraintViolation#getInvalidValue().
(CVE-2017-7536)
Red Hat would like to thank Liao Xinxi (NSFOCUS) for reporting
CVE-2017-7525. The CVE-2017-7536 issue was discovered by Gunnar Morling
(Red Hat).
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
5. Bugs fixed (https://bugzilla.redhat.com/):
1455566 - CVE-2014-9970 jasypt: Vulnerable to timing attack against the password hash comparison
1462702 - CVE-2017-7525 jackson-databind: Deserialization vulnerability via readValue method of ObjectMapper
1465573 - CVE-2017-7536 hibernate-validator: Privilege escalation when running under the security manager
1496586 - [Rebase] Tracker for rhvm-appliance 4.1.7
6. Package List:
Management Agent for RHEL 7 Hosts:
Source:
rhvm-appliance-4.1.20171102.0-1.el7.src.rpm
noarch:
rhvm-appliance-4.1.20171102.0-1.el7.noarch.rpm
Image Updates for RHV-H:
Source:
rhvm-appliance-4.1.20171102.0-1.el7.src.rpm
noarch:
rhvm-appliance-4.1.20171102.0-1.el7.noarch.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-2014-9970
https://access.redhat.com/security/cve/CVE-2017-7525
https://access.redhat.com/security/cve/CVE-2017-7536
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
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