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CVE-2016-2140

Status Candidate

Overview

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.

Related Files

Ubuntu Security Notice USN-3449-1
Posted Oct 11, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3449-1 - George Shuklin discovered that OpenStack Nova incorrectly handled the migration process. A remote authenticated user could use this issue to consume resources, resulting in a denial of service. George Shuklin and Tushar Patil discovered that OpenStack Nova incorrectly handled deleting instances. A remote authenticated user could use this issue to consume disk resources, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2015-3241, CVE-2015-3280, CVE-2015-5162, CVE-2015-7548, CVE-2015-7713, CVE-2015-8749, CVE-2016-2140
SHA-256 | a1c121127571465465556c60817389564c88cc2b4526a38cad3b673cd9b43192
Red Hat Security Advisory 2016-0365-01
Posted Mar 8, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0365-01 - OpenStack Compute launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform. Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances and controlling access through users and projects. An information-exposure flaw was found in the OpenStack Compute 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.

tags | advisory, root
systems | linux, redhat
advisories | CVE-2016-2140
SHA-256 | 2a608fa8fbe520f4d54fa3c7dbf910eb476d99ebb854e7f864548d4ad439ebd5
Red Hat Security Advisory 2016-0364-01
Posted Mar 8, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0364-01 - OpenStack Compute launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform. Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances and controlling access through users and projects. An information-exposure flaw was found in the OpenStack Compute 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.

tags | advisory, root
systems | linux, redhat
advisories | CVE-2016-2140
SHA-256 | 42f43c962db704a6e4d1ef4275f1c6ab1979f03bd2aba312893b8d69ff7c0c9b
Red Hat Security Advisory 2016-0363-01
Posted Mar 8, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0363-01 - OpenStack Compute launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform. Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances and controlling access through users and projects. An information-exposure flaw was found in the OpenStack Compute 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.

tags | advisory, root
systems | linux, redhat
advisories | CVE-2016-2140
SHA-256 | 807f9dc627917a3ab6155b29750bc8cca6f2081cb7fb9a13c0c8632a4b6fe6c6
Red Hat Security Advisory 2016-0366-01
Posted Mar 8, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0366-01 - OpenStack Compute launches and schedules large networks of virtual machines, creating a redundant and scalable cloud computing platform. Compute provides the software, control panels, and APIs required to orchestrate a cloud, including running virtual machine instances and controlling access through users and projects. An information-exposure flaw was found in the OpenStack Compute 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.

tags | advisory, root
systems | linux, redhat
advisories | CVE-2016-2140
SHA-256 | 214355ec6dde9651562bfb9588c0d193bdcafd9debc91171f1d1f43fee5d6fe1
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