High severity · published Feb 19, 2018
CVE-2017-18191
An issue was discovered in OpenStack Nova 15.x through 15.1.0 and 16.x through 16.1.1
7.5
CVSS
3.7%
EPSS
No
On KEV
Description
An issue was discovered in OpenStack Nova 15.x through 15.1.0 and 16.x through 16.1.1. By detaching and reattaching an encrypted volume, an attacker may access the underlying raw volume and corrupt the LUKS header, resulting in a denial of service attack on the compute host. (The same code error also results in data loss, but that is not a vulnerability because the user loses their own data.) All Nova setups supporting encrypted volumes are affected.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.7% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NO
Nova · Openstack
15.0.0 through 15.1.0; 16.0.0 through 16.1.1 · source: NVD
OP
Openstack · Redhat
9; 10; 12 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-18191
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-18191
Mailing List
http://openwall.com/lists/oss-security/2018/04/20/3
Third Party Advisory
http://www.securityfocus.com/bid/103104
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2332
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2714
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:2855
Exploit
https://launchpad.net/bugs/1739593
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