CVE-2022-22153

High

Description

An Insufficient Algorithmic Complexity combined with an Allocation of Resources Without Limits or Throttling vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series and MX Series with SPC3 allows an unauthenticated network attacker to cause latency in transit packet processing and even packet loss. If transit traffic includes a significant percentage (> 5%) of fragmented packets which need to be reassembled, high latency or packet drops might be observed. This issue affects Juniper Networks Junos OS on SRX Series, MX Series with SPC3: All versions prior to 18.2R3; 18.3 versions prior to 18.3R3; 18.4 versions prior to 18.4R2-S9, 18.4R3; 19.1 versions prior to 19.1R2; 19.2 versions prior to 19.2R1-S1, 19.2R2.

SeverityHigh
CVSS7.5
Exploit probability—
ProductJuniper Junos
PublishedJan 19, 2022
First seenJan 19, 2022

How to fix

Update
  • juniper junos18.2 or later

Affected products

ProductAffected versionsFixed in
juniper junosv < 18.2, 18.2, 18.3, 18.4, 19.1, 19.218.2

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