CVE-2018-0027

Junos OS: Receipt of malformed RSVP packet may lead to RPD denial of service

Description

Receipt of a crafted or malformed RSVP PATH message may cause the routing protocol daemon (RPD) to hang or crash. When RPD is unavailable, routing updates cannot be processed which can lead to an extended network outage. If RSVP is not enabled on an interface, then the issue cannot be triggered via that interface. This issue only affects Juniper Networks Junos OS 16.1 versions prior to 16.1R3. This issue does not affect Junos releases prior to 16.1R1.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 16.1R3, 16.2R1, and all subsequent releases.

Workaround:

  • Only enable RSVP on specific trusted interfaces as required for MPLS.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.23% Top 25%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
https://kb.juniper.net/JSA10861 mitigation vendor advisory
http://www.securitytracker.com/id/1041318 vdb entry third party advisory
http://www.securityfocus.com/bid/104721 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-0027?
CVE-2018-0027 has been scored as a high severity vulnerability.
How to fix CVE-2018-0027?
To fix CVE-2018-0027: The following software releases have been updated to resolve this specific issue: 16.1R3, 16.2R1, and all subsequent releases.
Is CVE-2018-0027 being actively exploited in the wild?
It is possible that CVE-2018-0027 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0027?
CVE-2018-0027 affects Juniper Networks Junos OS.
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