CVE-2024-30382

An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to send a specific routing update, causing an rpd core due to memory corruption, leading to a Denial of Service (DoS).

This issue can only be triggered when the system is configured for CoS-based forwarding (CBF) with a policy map containing a cos-next-hop-map action (see below). This issue affects: Junos OS:

• all versions before 20.4R3-S10,
• from 21.2 before 21.2R3-S8,
• from 21.3 before 21.3R3,
• from 21.4 before 21.4R3,
• from 22.1 before 22.1R2;

Junos OS Evolved:

• all versions before 21.2R3-S8-EVO,
• from 21.3 before 21.3R3-EVO,
• from 21.4 before 21.4R3-EVO,
• from 22.1 before 22.1R2-EVO.

Weakness

The product does not handle or incorrectly handles an exceptional condition.

References

• https://supportportal.juniper.net/JSA79174
• 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:L