CVE-2017-10619

Junos: SRX cluster denial of service vulnerability in flowd due to multicast packets

Description

When Express Path (formerly known as service offloading) is configured on Juniper Networks SRX1400, SRX3400, SRX3600, SRX5400, SRX5600, SRX5800 in high availability cluster configuration mode, certain multicast packets might cause the flowd process to crash, halting or interrupting traffic from flowing through the device and triggering RG1+ (data-plane) fail-over to the secondary node. Repeated crashes of the flowd process may constitute an extended denial of service condition. This service is not enabled by default and is only supported in high-end SRX platforms. Affected releases are Juniper Networks Junos OS 12.3X48 prior to 12.3X48-D45, 15.1X49 prior to 15.1X49-D80 on SRX1400, SRX3400, SRX3600, SRX5400, SRX5600, SRX5800.

Remediation

Workaround:

There are no viable workarounds for this issue.

7.5

CVSS

Severity: High

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.39%

Vendor Advisory juniper.net

Affected: Juniper Networks Junos OS

References

Link	Tags
https://kb.juniper.net/JSA10821	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-10619?: CVE-2017-10619 has been scored as a high severity vulnerability.
How to fix CVE-2017-10619?: As a workaround for remediating CVE-2017-10619: There are no viable workarounds for this issue.
Is CVE-2017-10619 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2017-10619 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-2017-10619?: CVE-2017-10619 affects Juniper Networks Junos OS.

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