Juniper Junos OS Evolved IPv6 Transit Traffic unusual condition

Summaryinfo

A vulnerability marked as problematic has been reported in Juniper Junos OS Evolved. Impacted is an unknown function of the component IPv6 Transit Traffic Handler. This manipulation causes unusual condition. This vulnerability is tracked as CVE-2022-22227. The attack is possible to be carried out remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Juniper Junos OS Evolved (Router Operating System) (the affected version is unknown) and classified as problematic. Affected by this vulnerability is an unknown code of the component IPv6 Transit Traffic Handler. The manipulation with an unknown input leads to a unusual condition vulnerability. The CWE definition for the vulnerability is CWE-754. The product does not check or incorrectly checks for unusual or exceptional conditions that are not expected to occur frequently during day to day operation of the product. As an impact it is known to affect availability. The summary by CVE is:

An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved on ACX7000 Series allows an unauthenticated network-based attacker to cause a partial Denial of Service (DoS). On receipt of specific IPv6 transit traffic, Junos OS Evolved on ACX7100-48L, ACX7100-32C and ACX7509 sends this traffic to the Routing Engine (RE) instead of forwarding it, leading to increased CPU utilization of the RE and a partial DoS. This issue only affects systems configured with IPv6. This issue does not affect ACX7024 which is supported from 22.3R1-EVO onwards where the fix has already been incorporated as indicated in the solution section. This issue affects Juniper Networks Junos OS Evolved on ACX7100-48L, ACX7100-32C, ACX7509: 21.1-EVO versions prior to 21.1R3-S2-EVO; 21.2-EVO versions prior to 21.2R3-S2-EVO; 21.3-EVO versions prior to 21.3R3-EVO; 21.4-EVO versions prior to 21.4R1-S1-EVO, 21.4R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 21.1R1-EVO.

The weakness was disclosed 10/18/2022 as JSA69878. The advisory is shared at kb.juniper.net. This vulnerability is known as CVE-2022-22227 since 12/21/2021. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

• Router Operating System

Vendor

• Juniper

Name

• Junos OS Evolved

License

• commercial

Website

• Vendor: https://www.juniper.net/

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CPE 2.2info

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