CVE-2019-0064

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

Published Oct 9, 2019 CVSS 3.1 · 7.5 High EPSS 1.3% KEV · Not listed
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

Vendor 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.


Vendor Workaround

There are no viable workarounds for this issue.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2019-0871 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.
References
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
juniper
Published
Updated
Sep 17, 2024, 2:53 AM
Reserved
Oct 11, 2018, 12:00 AM
Status
Modified
Published
Oct 9, 2019, 8:15 PM
Modified
Jun 17, 2026, 2:07 AM