Vulnerability identifier: #VU20804

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-15753

CWE-ID: CWE-200

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
os-vif
Universal components / Libraries / Libraries used by multiple products

Vendor: OpenDev

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to software uses a hard-coded MAC ageing time of 0. An attacker on the local network can intercept network traffic or perform denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

os-vif: 1.15.0 - 1.15.1

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External links
http://www.openwall.com/lists/oss-security/2019/08/29/2
http://launchpad.net/bugs/1837252
http://review.opendev.org/672834
http://review.opendev.org/678098
http://security.openstack.org/ossa/OSSA-2019-004.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

Is there known malware, which exploits this vulnerability?

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