CVE-2018-0005

Security Bulletin: Junos OS: MAC move limit configured to drop traffic may forward traffic.

Description

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: 14.1X53 versions prior to 14.1X53-D40; 15.1X53 versions prior to 15.1X53-D55; 15.1 versions prior to 15.1R7.

Remediation

Solution:

  • 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.

Workaround:

  • 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.

Category

7.4
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.24%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA10833 mitigation vendor advisory
http://www.securitytracker.com/id/1040182 third party advisory vdb entry

Frequently Asked Questions

What is the severity of CVE-2018-0005?
CVE-2018-0005 has been scored as a high severity vulnerability.
How to fix CVE-2018-0005?
To fix 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.
Is CVE-2018-0005 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-0005 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0005?
CVE-2018-0005 affects Juniper Networks Junos OS.
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