Denial of service in OpenStack



Published: 2017-12-21
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-18191
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Openstack Nova
Client/Desktop applications / Other client software

Vendor Openstack

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper input validation

EUVDB-ID: #VU10864

Risk: Low

CVSSv3.1: 3.5 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-18191

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local attacker to cause DoS condition on the target system.

The weakness exists due to insufficient handling of encrypted volumes. A local attacker can swap encrypted volumes, corrupt the LUKS headers and cause the service to crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Openstack Nova: 15.0.0 - 16.0.4

External links

http://review.openstack.org/#/c/539893/


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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