CVE-2019-0064

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

HIGH
7.5
CVSS Score
Published: October 9, 2019 at 07:26 PM UTC
Updated: June 17, 2026 at 02:07 AM UTC
4 products affected across 2 vendorsJunosSRX5800SRX5600

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

juniper-srx5400 (environment) · juniper-srx5600 (environment) · juniper-srx5800 (environment)
All versions
All versions
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
https://kb.juniper.net/JSA10963

CVSS

7.5HIGHjuniper
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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