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CVE-2019-15753

N/A

Description

In OpenStack os-vif 1.15.x before 1.15.2, and 1.16.0, a hard-coded MAC aging time of 0 disables MAC learning in linuxbridge, forcing obligatory Ethernet flooding of non-local destinations, which both impedes network performance and allows users to possibly view the content of packets for instances belonging to other tenants sharing the same network. Only deployments using the linuxbridge backend are affected. This occurs in PyRoute2.add() in internal/command/ip/linux/impl_pyroute2.py.

CVE Details

CVSS v3.1 ScoreN/A

Published8/28/2019

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

openstack:os-vif

Weaknesses (CWE)

CWE-770

References

http://www.openwall.com/lists/oss-security/2019/08/29/2(cve@mitre.org)

https://launchpad.net/bugs/1837252(cve@mitre.org)

https://review.opendev.org/672834(cve@mitre.org)

https://review.opendev.org/678098(cve@mitre.org)

https://security.openstack.org/ossa/OSSA-2019-004.html(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2019/08/29/2(af854a3a-2127-422b-91ae-364da2661108)

https://launchpad.net/bugs/1837252(af854a3a-2127-422b-91ae-364da2661108)

https://review.opendev.org/672834(af854a3a-2127-422b-91ae-364da2661108)

https://review.opendev.org/678098(af854a3a-2127-422b-91ae-364da2661108)

https://security.openstack.org/ossa/OSSA-2019-004.html(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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