SB2024071549 - Denial of service in Junos OS Evolved PFE

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Main Vulnerability Database SB2024071549

SB2024071549 - Denial of service in Junos OS Evolved PFE

Published: July 15, 2024

Security Bulletin ID SB2024071549
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Improper handling of values (CVE-ID: CVE-2024-39531)

CWE-ID: CWE-229 - Improper Handling of Values

CVSSv4: 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/E:U/U:Green


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.


Remediation

Install update from vendor's website.

References