CVE-2014-7821: Input Validation
First published: Mon Nov 24 2014(Updated: )
OpenStack Neutron before 2014.1.4 and 2014.2.x before 2014.2.1 allows remote authenticated users to cause a denial of service (crash) via a crafted dns_nameservers value in the DNS configuration.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenStack Neutron | >=2012.2.1<2014.1.4 | |
| OpenStack Neutron | >=2014.2<2014.2.1 | |
| Fedora | =20 | |
| Red Hat OpenStack for IBM Power | =4.0 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155351.html
- http://lists.openstack.org/pipermail/openstack-announce/2014-November/000303.html
- http://rhn.redhat.com/errata/RHSA-2014-1938.html
- http://rhn.redhat.com/errata/RHSA-2014-1942.html
- http://rhn.redhat.com/errata/RHSA-2015-0044.html
- http://secunia.com/advisories/62586
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- https://bugs.launchpad.net/neutron/+bug/1378450
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98818
Frequently Asked Questions
What is the severity of CVE-2014-7821?
CVE-2014-7821 is considered a high severity vulnerability due to its potential to cause a denial of service.
How do I fix CVE-2014-7821?
To fix CVE-2014-7821, upgrade OpenStack Neutron to version 2014.1.4 or 2014.2.1 or later.
Who is affected by CVE-2014-7821?
CVE-2014-7821 affects OpenStack Neutron versions before 2014.1.4 and 2014.2.x before 2014.2.1, along with specific Fedora and Red Hat OpenStack versions.
What type of attack can exploit CVE-2014-7821?
CVE-2014-7821 can be exploited through a crafted dns_nameservers value in the DNS configuration, leading to a crash.
Can CVE-2014-7821 be exploited remotely?
Yes, CVE-2014-7821 allows remote authenticated users to exploit the vulnerability.
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- agent/software-canonical-lookup-request
- vendor/openstack
- canonical/openstack neutron
- version/openstack neutron/2012.2.1
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- version/fedora/20
- vendor/redhat
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- version/red hat openstack for ibm power/4.0