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An Improper Handling of Syntactically Invalid Structure...

High severity Unreviewed Published Jan 12, 2024 to the GitHub Advisory Database • Updated Jan 12, 2024

Package

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Affected versions

Unknown

Patched versions

Unknown

Description

An Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS).

On all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition.

This issue affects:

Juniper Networks Junos OS Evolved

  • All versions earlier than 21.2R3-S7-EVO;
  • 21.3 versions earlier than 21.3R3-S5-EVO ;
  • 21.4 versions earlier than 21.4R3-S5-EVO;
  • 22.1 versions earlier than 22.1R3-S4-EVO;
  • 22.2 versions earlier than 22.2R3-S3-EVO ;
  • 22.3 versions earlier than 22.3R3-EVO;
  • 22.4 versions earlier than 22.4R2-EVO, 22.4R3-EVO.

References

Published by the National Vulnerability Database Jan 12, 2024
Published to the GitHub Advisory Database Jan 12, 2024
Last updated Jan 12, 2024

Severity

High

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
Network
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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

0.046%
(18th percentile)

Weaknesses

CVE ID

CVE-2024-21612

GHSA ID

GHSA-rj85-c5h6-pfrr

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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