CVE-2016-2140

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2016-2140
The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector : AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

3.5 /10

CVSS v2.0 : LOW

V2 Legend

Vector : AV:N/AC:M/Au:S/C:P/I:N/A:N

Exploitability : 6.8 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References
Link Resource
http://www.openwall.com/lists/oss-security/2016/03/08/6 Mailing List Third Party Advisory
http://www.securityfocus.com/bid/84277 Third Party Advisory VDB Entry
https://bugs.launchpad.net/nova/+bug/1548450 Third Party Advisory
https://security.openstack.org/ossa/OSSA-2016-007.html Patch Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
cpe:2.3:a:openstack:nova:*:*:*:*:*:*:*:*
History

13 Feb 2023, 04:50

Type Values Removed Values Added
References
  • {'url': 'https://access.redhat.com/security/cve/CVE-2016-2140', 'name': 'https://access.redhat.com/security/cve/CVE-2016-2140', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:0365', 'name': 'https://access.redhat.com/errata/RHSA-2016:0365', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'http://seclists.org/oss-sec/2016/q1/563', 'name': 'http://seclists.org/oss-sec/2016/q1/563', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:0364', 'name': 'https://access.redhat.com/errata/RHSA-2016:0364', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:0363', 'name': 'https://access.redhat.com/errata/RHSA-2016:0363', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2016:0366', 'name': 'https://access.redhat.com/errata/RHSA-2016:0366', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1313454', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1313454', 'tags': [], 'refsource': 'MISC'}
Summary An information-exposure flaw was found in the OpenStack Compute (nova) resize and migrate functionality. An authenticated user could write a malicious qcow header to an ephemeral or root disk, referencing a block device as a backing file. With a subsequent resize or migration, file system content on the specified device would be leaked to the user. Only setups using libvirt with raw storage and "use_cow_images = False" were affected. The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk.

02 Feb 2023, 15:17

Type Values Removed Values Added
References
  • (MISC) https://access.redhat.com/security/cve/CVE-2016-2140 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:0365 -
  • (MISC) http://seclists.org/oss-sec/2016/q1/563 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:0364 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:0363 -
  • (MISC) https://access.redhat.com/errata/RHSA-2016:0366 -
  • (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1313454 -
Summary The libvirt driver in OpenStack Compute (Nova) before 2015.1.4 (kilo) and 12.0.x before 12.0.3 (liberty), when using raw storage and use_cow_images is set to false, allows remote authenticated users to read arbitrary files via a crafted qcow2 header in an ephemeral or root disk. An information-exposure flaw was found in the OpenStack Compute (nova) resize and migrate functionality. An authenticated user could write a malicious qcow header to an ephemeral or root disk, referencing a block device as a backing file. With a subsequent resize or migration, file system content on the specified device would be leaked to the user. Only setups using libvirt with raw storage and "use_cow_images = False" were affected.
Information

Published : 2016-04-12 14:59

Updated : 2023-12-10 11:46

NVD link : CVE-2016-2140

Mitre link : CVE-2016-2140

CVE.ORG link : CVE-2016-2140

JSON object : View

Products Affected

openstack

  • nova
CWE
CWE-200

Exposure of Sensitive Information to an Unauthorized Actor