Executive Summary

Informations
Name CVE-2024-39536 First vendor Publication 2024-07-11
Vendor Cve Last vendor Modification 2024-07-12

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 3.6 Temporal Score 5.3
Exploitabality Sub Score 1.6
 
Attack Vector Adjacent Attack Complexity High
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

A Missing Release of Memory after Effective Lifetime vulnerability in the Periodic Packet Management Daemon (ppmd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a

Denial-of-Service (DoS).

When a BFD session configured with authentication flaps, ppmd memory can leak. Whether the leak happens depends on a race condition which is outside the attackers control. This issue only affects BFD operating in distributed aka delegated (which is the default behavior) or inline mode.

Whether the leak occurs can be monitored with the following CLI command:

> show ppm request-queue

FPC Â Â Pending-request fpc0Â Â Â Â Â Â Â Â Â Â 2 request-total-pending: 2

where a continuously increasing number of pending requests is indicative of the leak.Â

This issue affects:

Junos OS:

* All versions before 21.2R3-S8,
* 21.4 versions before 21.4R3-S7,
* 22.1 versions before 22.1R3-S4,
* 22.2 versions before 22.2R3-S4,
* 22.3 versions before 22.3R3,
* 22.4 versions before 22.4R2-S2, 22.4R3.

Junos OS Evolved:
* All versions before 21.2R3-S8-EVO,
* 21.4-EVO versions before 21.4R3-S7-EVO,
* 22.2-EVO versions before 22.2R3-S4-EVO,
* 22.3-EVO versions before 22.3R3-EVO,
* 22.4-EVO versions before 22.4R3-EVO.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39536

Sources (Detail)

https://supportportal.juniper.net/JSA82996
Source Url

Alert History

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0
1
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Date Informations
2024-07-12 21:27:24
  • Multiple Updates
2024-07-12 00:27:23
  • Multiple Updates
2024-07-11 21:27:22
  • First insertion