CVE-2019-0064

Junos OS: SRX5000 Series: flowd process crash due to receipt of specific TCP packet

Description

On SRX5000 Series devices, if 'set security zones security-zone <zone> tcp-rst' is configured, the flowd process may crash when a specific TCP packet is received by the device and triggers a new session. The process restarts automatically. However, receipt of a constant stream of these TCP packets may result in an extended Denial of Service (DoS) condition on the device. This issue affects Juniper Networks Junos OS: 18.2R3 on SRX 5000 Series; 18.4R2 on SRX 5000 Series; 19.2R1 on SRX 5000 Series.

Remediation

Solution:

The following software releases have been updated to resolve this specific issue: 18.2R3-S1, 18.4R2-S1, 18.4R3, 19.2R1-S1, 19.2R2, 19.3R1, and all subsequent releases.

Workaround:

There are no viable workarounds for this issue.

7.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.39%

Vendor Advisory juniper.net

Affected: Juniper Networks Junos OS

References

Link	Tags
https://kb.juniper.net/JSA10963	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2019-0064?: CVE-2019-0064 has been scored as a high severity vulnerability.
How to fix CVE-2019-0064?: To fix CVE-2019-0064: The following software releases have been updated to resolve this specific issue: 18.2R3-S1, 18.4R2-S1, 18.4R3, 19.2R1-S1, 19.2R2, 19.3R1, and all subsequent releases.
Is CVE-2019-0064 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2019-0064 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-2019-0064?: CVE-2019-0064 affects Juniper Networks Junos OS.

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