CVE-2018-0050

Junos OS: Receipt of a malformed MPLS RSVP packet leads to a Routing Protocols Daemon (RPD) crash.

Description

An error handling vulnerability in Routing Protocols Daemon (RPD) of Juniper Networks Junos OS allows an attacker to cause RPD to crash. Continued receipt of this malformed MPLS RSVP packet will cause a sustained Denial of Service condition. Affected releases are Juniper Networks Junos OS: 14.1 versions prior to 14.1R8-S5, 14.1R9; 14.1X53 versions prior to 14.1X53-D48 on QFX Switching; 14.2 versions prior to 14.1X53-D130 on QFabric System; 14.2 versions prior to 14.2R4. This issue does not affect versions of Junos OS before 14.1R1. Junos OS RSVP only supports IPv4. IPv6 is not affected by this issue. This issue require it to be received on an interface configured to receive this type of traffic.

Remediation

Solution:

  • The following software releases have been updated to resolve this specific issue: 14.1R8-S5, 14.1R9, 14.1X53-D130, 14.1X53-D48, 14.2R4, 15.1R1, and all subsequent releases.

Workaround:

  • Remove MPLS configuration stanzas from interface configurations that are at risk. No other workarounds exist for this issue.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.75% Top 30%
Vendor Advisory juniper.net
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS
Affected: Juniper Networks Junos OS
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1041851 vdb entry third party advisory
https://kb.juniper.net/JSA10884 mitigation vendor advisory
http://www.securityfocus.com/bid/106206 vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2018-0050?
CVE-2018-0050 has been scored as a high severity vulnerability.
How to fix CVE-2018-0050?
To fix CVE-2018-0050: The following software releases have been updated to resolve this specific issue: 14.1R8-S5, 14.1R9, 14.1X53-D130, 14.1X53-D48, 14.2R4, 15.1R1, and all subsequent releases.
Is CVE-2018-0050 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2018-0050 is being actively exploited. 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-2018-0050?
CVE-2018-0050 affects Juniper Networks Junos OS, Juniper Networks Junos OS, Juniper Networks Junos OS.
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