A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an adjacent, unauthenticated attacker to cause a Denial of Service (DoS).
If an MX Series device receives PTP packets on an MPC3E that doesn't support PTP this causes a memory leak which will result in unpredictable behavior and ultimately in an MPC crash and restart.
To monitor for this issue, please use the following FPC vty level commands:
show heap
shows an increase in "LAN buffer" utilization and
show clksync ptp nbr-upd-info
shows non-zero "Pending PFEs" counter.
This issue affects Juniper Networks Junos OS on MX Series with MPC3E:
* All versions earlier than 20.4R3-S3;
* 21.1 versions earlier than 21.1R3-S4;
* 21.2 versions earlier than 21.2R3;
* 21.3 versions earlier than 21.3R2-S1, 21.3R3;
* 21.4 versions earlier than 21.4R2;
* 22.1 versions earlier than 22.1R2.
References
| Link | Resource |
|---|---|
| https://supportportal.juniper.net/JSA75740 | Vendor Advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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Configuration 5 (hide)
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Configuration 6 (hide)
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History
No history.
Information
Published : 2024-01-12 01:15
Updated : 2024-01-19 21:00
NVD link : CVE-2024-21599
Mitre link : CVE-2024-21599
CVE.ORG link : CVE-2024-21599
JSON object : View
Products Affected
juniper
- junos
CWE
CWE-401
Missing Release of Memory after Effective Lifetime