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An Improper Isolation or Compartmentalization...

Moderate severity Unreviewed Published Apr 12, 2024 to the GitHub Advisory Database • Updated May 26, 2024

Package

No package listed— Suggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

An Improper Isolation or Compartmentalization vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series and EX Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).

If a specific malformed LACP packet is received by a QFX5000 Series, or an EX4400, EX4100 or EX4650 Series device, an LACP flap will occur resulting in traffic loss.
This issue affects Junos OS on QFX5000 Series, and on EX4400, EX4100 or EX4650 Series:

  • 20.4 versions from

20.4R3-S4

before 20.4R3-S8,

  • 21.2 versions from

21.2R3-S2

before 21.2R3-S6,

  • 21.4 versions from

21.4R2

before 21.4R3-S4,

  • 22.1 versions from

22.1R2

before 22.1R3-S3,

  • 22.2 versions before 22.2R3-S1,
  • 22.3 versions before 22.3R2-S2, 22.3R3,
  • 22.4 versions before 22.4R2-S1, 22.4R3.

References

Published by the National Vulnerability Database Apr 12, 2024
Published to the GitHub Advisory Database Apr 12, 2024
Last updated May 26, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.043%
(11th percentile)

Weaknesses

CVE ID

CVE-2024-30388

GHSA ID

GHSA-fwcw-wmg8-r4vq

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.

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