CVE-2024-39550
Juniper Networks Junos OS Missing Release of Memory after Effective Lifetime Denial of Service
Description
A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, adjacent attacker to trigger internal events cause ( which can be done by repeated port flaps) to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting rtlogd process. The memory usage can be monitored using the below command. ????user@host> show system processes extensive | match rtlog This issue affects Junos OS on MX Series with SPC3 line card: * from 21.2R3 before 21.2R3-S8, * from 21.4R2 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3-S1, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2.
INFO
Published Date :
July 11, 2024, 5:15 p.m.
Last Modified :
April 11, 2025, 2:50 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2024-39550
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Apply the relevant Junos software release referenced in Juniper advisory JSA83012
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-39550.
| URL | Resource |
|---|---|
| https://supportportal.juniper.net/JSA83012 | Vendor Advisory |
| https://supportportal.juniper.net/JSA83012 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-39550 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-39550
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-39550 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-39550 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Reanalysis by [email protected]
Apr. 11, 2025
Action Type Old Value New Value Added CWE CWE-401 -
Initial Analysis by [email protected]
Mar. 05, 2025
Action Type Old Value New Value Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:21.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.2:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:21.4:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.1:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.2:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:* OR cpe:2.3:h:juniper:mx240:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx480:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:mx960:-:*:*:*:*:*:*:* Added Reference Type CVE: https://supportportal.juniper.net/JSA83012 Types: Vendor Advisory Added Reference Type Juniper Networks, Inc.: https://supportportal.juniper.net/JSA83012 Types: Vendor Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://supportportal.juniper.net/JSA83012 -
CVE Modified by [email protected]
Jul. 11, 2024
Action Type Old Value New Value Changed Description A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, adjacent attacker to trigger internal events cause ( which can be done by repeated port flaps) to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting rtlogd process. The memory usage can be monitored using the below command. ????user@host> show system processes extensive | match rtlog This issue affects Junos OS on MX Series with SPC3 line card: * from 21.2R3 before 21.2R3-S8, * from 21.4R2 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3-S1, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, adjacent attacker to trigger internal events cause ( which can be done by repeated port flaps) to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting rtlogd process. The memory usage can be monitored using the below command. user@host> show system processes extensive | match rtlog This issue affects Junos OS on MX Series with SPC3 line card: * from 21.2R3 before 21.2R3-S8, * from 21.4R2 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3-S1, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. -
CVE Received by [email protected]
Jul. 11, 2024
Action Type Old Value New Value Added Description A Missing Release of Memory after Effective Lifetime vulnerability in the rtlogd process of Juniper Networks Junos OS on MX Series with SPC3 allows an unauthenticated, adjacent attacker to trigger internal events cause ( which can be done by repeated port flaps) to cause a slow memory leak, ultimately leading to a Denial of Service (DoS). Memory can only be recovered by manually restarting rtlogd process. The memory usage can be monitored using the below command. user@host> show system processes extensive | match rtlog This issue affects Junos OS on MX Series with SPC3 line card: * from 21.2R3 before 21.2R3-S8, * from 21.4R2 before 21.4R3-S6, * from 22.1 before 22.1R3-S5, * from 22.2 before 22.2R3-S3, * from 22.3 before 22.3R3-S2, * from 22.4 before 22.4R3-S1, * from 23.2 before 23.2R2, * from 23.4 before 23.4R2. Added Reference Juniper Networks, Inc. https://supportportal.juniper.net/JSA83012 [No types assigned] Added CWE Juniper Networks, Inc. CWE-401 Added CVSS V3.1 Juniper Networks, Inc. AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V4.0 Juniper Networks, Inc. CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:U/V:X/RE:X/U:X