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CVE-2024-39555

An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker sending a specific malformed BGP update message to cause the session to reset, resulting in a Denial of Service (DoS). Continued receipt and processing of these malformed BGP update messages will create a sustained Denial of Service (DoS) condition. Upon receipt of a BGP update message over an established BGP session containing a specifically malformed tunnel encapsulation attribute, when segment routing is enabled, internal processing of the malformed attributes within the update results in improper parsing of remaining attributes, leading to session reset: BGP SEND Notification code 3 (Update Message Error) subcode 1 (invalid attribute list) Only systems with segment routing enabled are vulnerable to this issue. This issue affects eBGP and iBGP, in both IPv4 and IPv6 implementations, and requires a remote attacker to have at least one established BGP session. This issue affects: Junos OS: * All versions before 21.4R3-S8, * from 22.2 before 22.2R3-S4, * from 22.3 before 22.3R3-S3, * from 22.4 before 22.4R3-S3, * from 23.2 before 23.2R2-S1, * from 23.4 before 23.4R1-S2, 23.4R2. Junos OS Evolved:  * All versions before 21.4R3-S8-EVO, * from 22.2-EVO before 22.2R3-S4-EVO, * from 22.3-EVO before 22.3R3-S3-EVO, * from 22.4-EVO before 22.4R3-S3-EVO, * from 23.2-EVO before 23.2R2-S1-EVO, * from 23.4-EVO before 23.4R1-S2-EVO, 23.4R2-EVO.

Published

2024-07-10T23:15:11.863

Last Modified

2025-02-07T20:02:54.603

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses
  • Type: Secondary
    CWE-755
  • Type: Primary
    CWE-755
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System juniper junos < 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 21.4 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.2 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.3 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 22.4 Yes
Operating System juniper junos 23.2 Yes
Operating System juniper junos 23.2 Yes
Operating System juniper junos 23.2 Yes
Operating System juniper junos 23.2 Yes
Operating System juniper junos 23.2 Yes
Operating System juniper junos 23.4 Yes
Operating System juniper junos 23.4 Yes
Operating System juniper junos 23.4 Yes
Operating System juniper junos_os_evolved < 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 21.4 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.2 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.3 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 22.4 Yes
Operating System juniper junos_os_evolved 23.2 Yes
Operating System juniper junos_os_evolved 23.2 Yes
Operating System juniper junos_os_evolved 23.2 Yes
Operating System juniper junos_os_evolved 23.2 Yes
Operating System juniper junos_os_evolved 23.2 Yes
Operating System juniper junos_os_evolved 23.4 Yes
Operating System juniper junos_os_evolved 23.4 Yes
Operating System juniper junos_os_evolved 23.4 Yes
References