CVE-2024-21606 Information

Description

A Double Free vulnerability in the flow processing daemon (flowd) of Juniper Networks Junos OS on SRX Series allows a network-based unauthenticated attacker to cause a Denial of Service (DoS).

In a remote access VPN scenario if a cp-encap-profile\ is configured and a sequence of specific packets is received a flowd crash and restart will be observed.

This issue affects Juniper Networks Junos OS on SRX Series:

All versions earlier than 20.4R3-S8;
21.2 versions earlier than 21.2R3-S6;
21.3 versions earlier than 21.3R3-S5;
21.4 versions earlier than 21.4R3-S5;
22.1 versions earlier than 22.1R3-S3;
22.2 versions earlier than 22.2R3-S3;
22.3 versions earlier than 22.3R3-S1;
22.4 versions earlier than 22.4R2-S2 22.4R3.

Reference

https://supportportal.juniper.net/JSA75747 https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H