CVE-2024-47491
Severity CVSS v4.0:
HIGH
Type:
Unavailable / Other
Publication date:
11/10/2024
Last modified:
17/10/2024
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).<br />
<br />
When a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts. <br />
<br />
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. <br />
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 &#39; show version detail &#39; command:<br />
<br />
<br />
<br />
lab@router> show version detail| match 32<br />
JUNOS 32-bit kernel Software Suite <br />
<br />
lab@router> show version detail| match 64<br />
JUNOS 64-bit kernel Software Suite <br />
<br />
<br />
This issue affects:<br />
<br />
Juniper Networks Junos OS: <br />
<br />
* All versions before 21.4R3-S8, <br />
* from 22.2 before 22.2R3-S4, <br />
* from 22.4 before 22.4R3-S3, <br />
* from 23.2 before 23.2R2-S1, <br />
* from 23.4 before 23.4R1-S2, 23.4R2.<br />
<br />
<br />
Juniper Networks Junos OS Evolved: * All versions before 21.4R3-S8-EVO, <br />
* from 22.2 before 22.2R3-S4-EVO, <br />
* from 22.4 before 22.4R3-S3-EVO,<br />
* from 23.2 before 23.2R2-S1-EVO, <br />
* from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.
Impact
Base Score 4.0
8.20
Severity 4.0
HIGH
Base Score 3.x
5.90
Severity 3.x
MEDIUM