Juniper Junos OS: 2024-10 Security Bulletin: Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP path attribute leads to an RPD crash (JSA88116) (CVE-2024-47491)

Juniper Junos OS: 2024-10 Security Bulletin: Junos OS and Junos OS Evolved: Receipt of a specific malformed BGP path attribute leads to an RPD crash (JSA88116) (CVE-2024-47491)

Severity

7

CVSS

(AV:N/AC:M/Au:N/C:N/I:N/A:C)

Published

10/09/2024

Created

10/10/2024

Added

10/10/2024

Modified

01/30/2025

Description

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 cause Denial of Service (DoS). When a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts. Continuous receipt of a BGP UPDATE with a specifically malformed path attribute will create a sustained Denial of Service (DoS) condition for impacted devices. While this issue affects systems running 32-bit and 64-bit systems, the probability of impact on 64-bit system is extremely low.  According toKB25803https://supportportal.juniper.net/s/article/Junos-How-to-check-if-Junos-OS-is-64-or-32-bit-on-a-router , customers can confirm 32-bit or 64-bit system via the ' show version detail ' command: lab@router> show version detail| match 32 JUNOS 32-bit kernel Software Suite  lab@router> show version detail| match 64 JUNOS 64-bit kernel Software Suite  This issue affects: Juniper Networks Junos OS:  *All versions before 21.4R3-S8,  *from 22.2 before 22.2R3-S4,  *from 22.4 before 22.4R3-S3,  *from 23.2 before 23.2R2-S1,  *from 23.4 before 23.4R1-S2, 23.4R2. Juniper Networks Junos OS Evolved: *All versions before 21.4R3-S8-EVO, *from 22.2 before 22.2R3-S4-EVO, *from 22.4 before 22.4R3-S3-EVO, *from 23.2 before 23.2R2-S1-EVO, *from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.

Solution(s)

• juniper-junos-os-upgrade-latest

References

• https://attackerkb.com/topics/cve-2024-47491
• CVE - 2024-47491
• JSA88116