Improper handling of values in Junos OS Evolved - CVE-2024-39531
Published: July 15, 2024
Vulnerability identifier: #VU94347
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2024-39531
CWE-ID: CWE-229
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper handling of values error in the Packet Forwarding Engine (PFE). A remote non-authenticated attacker can cause a Denial-of-Service (DoS).
If a value is configured for DDoS bandwidth or burst parameters for any protocol in a queue, all protocols which share the same queue will have their bandwidth or burst value changed to the new value.
If, for example, OSPF was configured with a certain bandwidth value, ISIS would also be limited to this value.
Affected software
Junos OS Evolved
How to mitigate CVE-2024-39531
Install updates from vendor's website.
Junos OS Evolved - addressed in versions 21.4R3-S7-EVO, 22.1R3-S6-EVO, 22.2R3-S3-EVO, 22.3R3-S3-EVO, 22.4R3-S2-EVO, 23.2R2-EVO, 23.4R1-S1-EVO, 23.4R2-EVO, 24.2R1-EVO