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Calendar Grey November 7, 2017
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Essential updates implemented for rhvm-appliance within Red Hat Virtualization, tackling vulnerabilities linked to potential code execution threats.
An update for rhvm-appliance is now available for RHEV 4.X RHEV-H and Agents for RHEL-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

Summary

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).

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

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


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2017:3141-01
Product: Red Hat Virtualization
Issue date: 2017-11-07

Topic

An update for rhvm-appliance is now available for RHEV 4.X RHEV-H andAgents for 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.

Relevant Releases Architectures

Image Updates for RHV-H - noarch

Management Agent for RHEL 7 Hosts - noarch

Bugs Fixed

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

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