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CVE-2024-47491

MEDIUM
Published 2024-10-11T15:23:08.762Z
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CVSS Score

V3.1
5.9
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2025.03.14
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-06-25
Exploit Probability
Percentile: 0.339
Higher than 33.9% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
NONE
Availability
HIGH

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 to KB25803 https://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.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

Juniper Networks

Junos OS

Affected Versions:

0 22.2 22.4 23.2 23.4
Juniper Networks

Junos OS Evolved

Affected Versions:

0 22.2 22.4 23.2 23.4
juniper

junos

Affected Versions:

0 22.2 22.4 23.2 23.4 23.4
juniper

junos_evolved

Affected Versions:

0 22.2 22.4 23.2 23.4 23.4

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

⚠ Unreviewed HIGH

GHSA-79v4-xhfm-cr97

Advisory Details

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. 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.

CVSS Scoring

CVSS Score

7.5

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2024-47491
WEB https://supportportal.juniper.net

Advisory provided by GitHub Security Advisory Database. Published: October 11, 2024, Modified: October 17, 2024

References

https://supportportal.juniper.net/
Published: 2024-10-11T15:23:08.762Z
Last Modified: 2024-10-22T19:12:09.407Z
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