CVE-2024-21613 json
Junos OS and Junos OS Evolved: A link flap causes patroot memory leak which leads to rpd crash
published 2024-01-12 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-19261
- cvss
- 6.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
A Missing Release of Memory after Effective Lifetime vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause an rpd crash, leading to Denial of Service (DoS).
On all Junos OS and Junos OS Evolved platforms, when traffic engineering is enabled for OSPF or ISIS, and a link flaps, a patroot memory leak is observed. This memory leak, over time, will lead to an rpd crash and restart.
The memory usage can be monitored using the below command.
user@host> show task memory detail | match patroot This issue affects:
Juniper Networks Junos OS
* All versions earlier than 21.2R3-S3; * 21.3 versions earlier than 21.3R3-S5; * 21.4 versions earlier than 21.4R3-S3; * 22.1 versions earlier than 22.1R3; * 22.2 versions earlier than 22.2R3.
Juniper Networks Junos OS Evolved
* All versions earlier than 21.3R3-S5-EVO; * 21.4 versions earlier than 21.4R3-EVO; * 22.1 versions earlier than 22.1R3-EVO; * 22.2 versions earlier than 22.2R3-EVO.
Patch / fix
- Juniper Networks Junos OS 21.2R3-S3, 21.3R3-S5, 21.4R3-S3, 22.1R3, 22.2R3
- Juniper Networks Junos OS Evolved 21.3R3-S5-EVO, 21.4R3-EVO, 22.1R3-EVO, 22.2R3-EVO
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
- Juniper Networks Junos OS
- Juniper Networks Junos OS Evolved
Classification
- Weakness
-
- CWE-401 Missing Release of Memory after Effective Lifetime
References
-
supportportal.juniper.net
/JSA75754
vendor-advisory
-
first.org
/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
technical-description, third-party-advisory
Sources
- CVE List CVE-2024-21613
- NVD CVE-2024-21613
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