Skip to content

An Improper Input Validation vulnerability in the Packet...

Moderate severity Unreviewed Published Jul 11, 2024 to the GitHub Advisory Database • Updated Jul 11, 2024

Package

No package listedSuggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

An Improper Input Validation vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows a local, low-privileged attacker to cause a Denial of Service (DoS).

When a specific "clear" command is run, the Advanced Forwarding Toolkit manager (evo-aftmand-bt or evo-aftmand-zx) crashes and restarts.

The crash impacts all traffic going through the FPCs, causing a DoS. Running the command repeatedly leads to a sustained DoS condition.
This issue affects Junos OS Evolved: 

  • All versions before 20.4R3-S9-EVO, 
  • from 21.2-EVO before 21.2R3-S7-EVO, 
  • from 21.3-EVO before 21.3R3-S5-EVO, 
  • from 21.4-EVO before 21.4R3-S6-EVO, 
  • from 22.1-EVO before 22.1R3-S4-EVO, 
  • from 22.2-EVO before 22.2R3-S3-EVO, 
  • from 22.3-EVO before 22.3R3-S3-EVO, 
  • from 22.4-EVO before 22.4R3-EVO,
  • from 23.2-EVO before 23.2R2-EVO.

References

Published by the National Vulnerability Database Jul 10, 2024
Published to the GitHub Advisory Database Jul 11, 2024
Last updated Jul 11, 2024

Severity

Moderate
5.5
/ 10

CVSS base metrics

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weaknesses

CVE ID

CVE-2024-39513

GHSA ID

GHSA-c6q5-vmh3-8544

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

Learn more about GitHub language support

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.