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require 'nokogiri' | |
document = Nokogiri::XML(DATA.read) | |
p document.xpath('ns:cvrfdoc/ns:DocumentTitle', 'ns' => 'http://www.icasi.org/CVRF/schema/cvrf/1.1') | |
__END__ | |
<?xml version="1.0" encoding="utf-8"?> | |
<cvrfdoc xmlns="http://www.icasi.org/CVRF/schema/cvrf/1.1" xmlns:cvrf="http://www.icasi.org/CVRF/schema/cvrf/1.1"> | |
<DocumentTitle xml:lang="en">Red Hat Security Advisory: libvirt security and bug fix update</DocumentTitle> | |
<DocumentType>Security Advisory</DocumentType> | |
<DocumentPublisher Type="Vendor"> | |
<ContactDetails>secalert@redhat.com</ContactDetails> | |
<IssuingAuthority>Red Hat Security Response Team</IssuingAuthority> | |
</DocumentPublisher> | |
<DocumentTracking> | |
<Identification><ID>RHSA-2015:0008</ID></Identification> | |
<Status>Final</Status> | |
<Version>1</Version> | |
<RevisionHistory> | |
<Revision> | |
<Number>1</Number> | |
<Date>2015-01-05T19:37:00Z</Date> | |
<Description>Current version</Description> | |
</Revision> | |
</RevisionHistory> | |
<InitialReleaseDate>2015-01-05T19:36:00Z</InitialReleaseDate> | |
<CurrentReleaseDate>2015-01-05T19:37:00Z</CurrentReleaseDate> | |
<Generator> | |
<Engine>Red Hat rhsa-to-cvrf 1.1</Engine> | |
<Date>2015-01-05T20:31:14Z</Date> | |
</Generator> | |
</DocumentTracking> | |
<DocumentNotes> | |
<Note Title="Topic" Type="Summary" Ordinal="1" xml:lang="en"> | |
Updated libvirt packages that fix one security issue and three bugs are now | |
available for Red Hat Enterprise Linux 7. | |
Red Hat Product Security has rated this update as having Low security | |
impact. A Common Vulnerability Scoring System (CVSS) base score, which | |
gives a detailed severity rating, is available from the CVE link in the | |
References section. </Note> | |
<Note Title="Details" Type="General" Ordinal="2" xml:lang="en"> | |
The libvirt library is a C API for managing and interacting with the | |
virtualization capabilities of Linux and other operating systems. | |
In addition, libvirt provides tools for remote management of | |
virtualized systems. | |
It was found that when the VIR_DOMAIN_XML_MIGRATABLE flag was used, the | |
QEMU driver implementation of the virDomainGetXMLDesc() function could | |
bypass the restrictions of the VIR_DOMAIN_XML_SECURE flag. A remote | |
attacker able to establish a read-only connection to libvirtd could use | |
this flaw to leak certain limited information from the domain XML data. | |
(CVE-2014-7823) | |
This issue was discovered by Eric Blake of Red Hat. | |
This update also fixes the following bugs: | |
* In Red Hat Enterprise Linux 6, libvirt relies on the QEMU emulator to | |
supply the error message when an active commit is attempted. However, with | |
Red Hat Enterprise Linux 7, QEMU added support for an active commit, but an | |
additional interaction from libvirt to fully enable active commits is still | |
missing. As a consequence, attempts to perform an active commit caused | |
libvirt to become unresponsive. With this update, libvirt has been fixed to | |
detect an active commit by itself, and now properly declares the feature as | |
unsupported. As a result, libvirt no longer hangs when an active commit is | |
attempted and instead produces an error message. | |
Note that the missing libvirt interaction will be added in Red Hat | |
Enterprise Linux 7.1, adding full support for active commits. (BZ#1150379) | |
* Prior to this update, the libvirt API did not properly check whether a | |
Discretionary Access Control (DAC) security label is non-NULL before trying | |
to parse user/group ownership from it. In addition, the DAC security label | |
of a transient domain that had just finished migrating to another host is | |
in some cases NULL. As a consequence, when the virDomainGetBlockInfo API | |
was called on such a domain, the libvirtd daemon sometimes terminated | |
unexpectedly. With this update, libvirt properly checks DAC labels before | |
trying to parse them, and libvirtd thus no longer crashes in the described | |
scenario. (BZ#1171124) | |
* If a block copy operation was attempted while another block copy was | |
already in progress to an explicit raw destination, libvirt previously | |
stopped regarding the destination as raw. As a consequence, if the | |
qemu.conf file was edited to allow file format probing, triggering the bug | |
could allow a malicious guest to bypass sVirt protection by making libvirt | |
regard the file as non-raw. With this update, libvirt has been fixed to | |
consistently remember when a block copy destination is raw, and guests can | |
no longer circumvent sVirt protection when the host is configured to allow | |
format probing. (BZ#1149078) | |
All libvirt users are advised to upgrade to these updated packages, which | |
contain backported patches to correct these issues. After installing the | |
updated packages, libvirtd will be restarted automatically. </Note> | |
<Note Title="Terms of Use" Ordinal="3" Type="Legal Disclaimer" xml:lang="en">Please see https://www.redhat.com/footer/terms-of-use.html</Note> | |
</DocumentNotes> | |
<DocumentDistribution xml:lang="en">Copyright © 2015 Red Hat, Inc. All rights reserved.</DocumentDistribution> | |
<AggregateSeverity Namespace="https://access.redhat.com/security/updates/classification/">Low</AggregateSeverity> | |
<DocumentReferences> | |
<Reference Type="Self"> | |
<URL>https://rhn.redhat.com/errata/RHSA-2015-0008.html</URL> | |
<Description>https://rhn.redhat.com/errata/RHSA-2015-0008.html</Description> | |
</Reference> | |
<Reference> | |
<URL>https://access.redhat.com/security/updates/classification/#low</URL> | |
<Description>https://access.redhat.com/security/updates/classification/#low</Description> | |
</Reference> | |
<Reference> | |
<URL>https://bugzilla.redhat.com/show_bug.cgi?id=1150379</URL> | |
<Description>https://bugzilla.redhat.com/show_bug.cgi?id=1150379</Description> | |
</Reference> | |
<Reference> | |
<URL>https://bugzilla.redhat.com/show_bug.cgi?id=1171124</URL> | |
<Description>https://bugzilla.redhat.com/show_bug.cgi?id=1171124</Description> | |
</Reference> | |
</DocumentReferences> | |
<ProductTree xmlns="http://www.icasi.org/CVRF/schema/prod/1.1"> | |
<Branch Type="Product Family" Name="Red Hat Enterprise Linux"> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux Server (v. 7)"> | |
<FullProductName ProductID="7Server-7.0.Z">Red Hat Enterprise Linux Server (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux Workstation Optional (v. 7)"> | |
<FullProductName ProductID="7Workstation-optional-7.0.Z">Red Hat Enterprise Linux Workstation Optional (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux Client (v. 7)"> | |
<FullProductName ProductID="7Client-7.0.Z">Red Hat Enterprise Linux Client (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux ComputeNode (v. 7)"> | |
<FullProductName ProductID="7ComputeNode-7.0.Z">Red Hat Enterprise Linux ComputeNode (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux Workstation (v. 7)"> | |
<FullProductName ProductID="7Workstation-7.0.Z">Red Hat Enterprise Linux Workstation (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux Client Optional (v. 7)"> | |
<FullProductName ProductID="7Client-optional-7.0.Z">Red Hat Enterprise Linux Client Optional (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux Server Optional (v. 7)"> | |
<FullProductName ProductID="7Server-optional-7.0.Z">Red Hat Enterprise Linux Server Optional (v. 7)</FullProductName> | |
</Branch> | |
<Branch Type="Product Name" Name="Red Hat Enterprise Linux ComputeNode Optional (v. 7)"> | |
<FullProductName ProductID="7ComputeNode-optional-7.0.Z">Red Hat Enterprise Linux ComputeNode Optional (v. 7)</FullProductName> | |
</Branch> | |
</Branch> | |
<Branch Type="Product Version" Name="libvirt-1.1.1-29.el7_0.4"> | |
<FullProductName ProductID="libvirt-1.1.1-29.el7_0.4">libvirt-1.1.1-29.el7_0.4.src.rpm</FullProductName> | |
</Branch> | |
<Relationship ProductReference="libvirt-1.1.1-29.el7_0.4" RelationType="Default Component Of" RelatesToProductReference="7Server-7.0.Z"> | |
<FullProductName ProductID="7Server-7.0.Z:libvirt-1.1.1-29.el7_0.4">libvirt-1.1.1-29.el7_0.4 as a component of Red Hat Enterprise Linux Server (v. 7)</FullProductName> | |
</Relationship> | |
<Relationship ProductReference="libvirt-1.1.1-29.el7_0.4" RelationType="Default Component Of" RelatesToProductReference="7Client-7.0.Z"> | |
<FullProductName ProductID="7Client-7.0.Z:libvirt-1.1.1-29.el7_0.4">libvirt-1.1.1-29.el7_0.4 as a component of Red Hat Enterprise Linux Client (v. 7)</FullProductName> | |
</Relationship> | |
<Relationship ProductReference="libvirt-1.1.1-29.el7_0.4" RelationType="Default Component Of" RelatesToProductReference="7ComputeNode-7.0.Z"> | |
<FullProductName ProductID="7ComputeNode-7.0.Z:libvirt-1.1.1-29.el7_0.4">libvirt-1.1.1-29.el7_0.4 as a component of Red Hat Enterprise Linux ComputeNode (v. 7)</FullProductName> | |
</Relationship> | |
<Relationship ProductReference="libvirt-1.1.1-29.el7_0.4" RelationType="Default Component Of" RelatesToProductReference="7Workstation-7.0.Z"> | |
<FullProductName ProductID="7Workstation-7.0.Z:libvirt-1.1.1-29.el7_0.4">libvirt-1.1.1-29.el7_0.4 as a component of Red Hat Enterprise Linux Workstation (v. 7)</FullProductName> | |
</Relationship> | |
</ProductTree> | |
<Vulnerability Ordinal="1" xmlns="http://www.icasi.org/CVRF/schema/vuln/1.1"> | |
<Notes><Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">It was found that when the VIR_DOMAIN_XML_MIGRATABLE flag was used, the QEMU driver implementation of the virDomainGetXMLDesc() function could bypass the restrictions of the VIR_DOMAIN_XML_SECURE flag. A remote attacker able to establish a read-only connection to libvirtd could use this flaw to leak certain limited information from the domain XML data. </Note></Notes> | |
<DiscoveryDate>2014-10-30T00:00:00Z</DiscoveryDate> | |
<ReleaseDate>2014-11-05T00:00:00Z</ReleaseDate> | |
<Involvements><Involvement Party="Vendor" Status="Completed"></Involvement></Involvements> | |
<CVE>CVE-2014-7823</CVE> | |
<ProductStatuses><Status Type="Fixed"> | |
<ProductID>7Client-7.0.Z:libvirt-1.1.1-29.el7_0.4</ProductID> | |
<ProductID>7ComputeNode-7.0.Z:libvirt-1.1.1-29.el7_0.4</ProductID> | |
<ProductID>7Server-7.0.Z:libvirt-1.1.1-29.el7_0.4</ProductID> | |
<ProductID>7Workstation-7.0.Z:libvirt-1.1.1-29.el7_0.4</ProductID> | |
</Status></ProductStatuses> | |
<Threats><Threat Type="Impact"><Description>Low</Description></Threat></Threats> | |
<CVSSScoreSets><ScoreSet> | |
<BaseScore>3.3</BaseScore> | |
<Vector>AV:A/AC:L/Au:N/C:P/I:N/A:N</Vector> | |
</ScoreSet></CVSSScoreSets> | |
<Remediations> | |
<Remediation Type="Vendor Fix"><Description xml:lang="en"> | |
Before applying this update, make sure all previously released errata | |
relevant to your system have been applied. | |
This update is available via the Red Hat Network. Details on how to use the | |
Red Hat Network to apply this update are available at | |
https://access.redhat.com/articles/11258 </Description> <URL>https://rhn.redhat.com/errata/RHSA-2015-0008.html</URL></Remediation> | |
</Remediations> | |
<References> | |
<Reference> | |
<URL>https://access.redhat.com/security/cve/CVE-2014-7823</URL> | |
<Description>CVE-2014-7823</Description> | |
</Reference> | |
<Reference> | |
<URL>https://bugzilla.redhat.com/show_bug.cgi?id=1160817</URL> | |
<Description>bz#1160817: CVE-2014-7823 libvirt: dumpxml: information leak with migratable flag</Description> | |
</Reference> | |
</References> | |
<Acknowledgments><Acknowledgment><Description>This issue was discovered by Eric Blake of Red Hat.</Description></Acknowledgment></Acknowledgments> | |
</Vulnerability> | |
</cvrfdoc> |
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