QFX and EX Series switches configured to drop traffic when the MAC move limit is exceeded will forward traffic instead of dropping traffic. This can lead to denials of services or other unintended conditions.
Affected releases are Juniper Networks Junos OS:
Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
This issue was found during internal product security testing or research.
This issue has been assigned CVE-2018-0005 .
The following software releases have been updated to resolve this specific issue: 14.1X53-D40, 15.1X53-D55, 15.1X53-D60, 16.1R1, and all subsequent releases.
This issue is being tracked as 1105372 which is visible on the Customer Support website.
Note: Juniper SIRT's policy is not to evaluate releases which are beyond End of Engineering (EOE) or End of Life (EOL).
Software Releases, patches and updates are available at https://www.juniper.net/support/downloads/ .
To decrease the risk of seeing the issue, increase the MAC move limit rate on the device, or to work around the issue until a fix can be taken, remove the MAC move limit from the devices running configuration. These actions may introduce other possible unintended consequences to customer environments and should be evaluated carefully on a case-by-case basis and are not complete mitigations.
2018-01-10: Initial publication