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HIGH

Junos OS Evolved: PTX Series: An attacker can cause a kernel panic by sending a malformed TCP packet to the device

Published Oct 18, 2022

Description

An Improper Validation of Syntactic Correctness of Input vulnerability in the kernel of Juniper Networks Junos OS Evolved on PTX series allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). When an incoming TCP packet destined to the device is malformed there is a possibility of a kernel panic. Only TCP packets destined to the ports for BGP, LDP and MSDP can trigger this. This issue only affects PTX10004, PTX10008, PTX10016. No other PTX Series devices or other platforms are affected. This issue affects Juniper Networks Junos OS Evolved: 20.4-EVO versions prior to 20.4R3-S4-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R3-EVO; 22.1-EVO versions prior to 22.1R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 20.4R1-EVO.

Affected products

Remediation

Vendor solution

The following Junos OS Evolved software releases have been updated to resolve this specific issue: 20.4R3-S4-EVO, 21.4R3-EVO, 22.1R2-EVO, 22.2R1-EVO, and all subsequent releases.

References (2)

Change history (0)

No recorded changes yet.

Sources
CVE.org / MITRE
Status PUBLISHED
Assigner juniper
Published Oct 18, 2022
Updated May 12, 2025
Reserved Dec 21, 2021
CISA Vulnrichment
Updated May 12, 2025
NVD
Status Modified
Modified Jun 17, 2026
Red Hat
Severity n/a
Public date n/a
ENISA EUVD
Assigner juniper
Published Oct 18, 2022
Updated May 12, 2025
Exploited since n/a
EUVD-2022-27339