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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.
Metrics
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OR
*cpe:2.3:o:juniper:junos:21.2:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.2:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.2:r1-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.2:r1-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.2:r2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.2:r2-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.2:r2-s2:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:21.3:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.3:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.3:r1-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.3:r1-s2:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.3:r2:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:21.4:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.4:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.4:r1-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:21.4:r1-s2:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:juniper:junos:22.1:-:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:22.1:r1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:22.1:r1-s1:*:*:*:*:*:*
*cpe:2.3:o:juniper:junos:22.1:r1-s2:*:*:*:*:*:*
Added
CVSS V3.1
NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Added
CWE
NIST CWE-401
Changed
Reference Type
https://supportportal.juniper.net/JSA75740 No Types Assigned
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
Added
Reference
Juniper Networks, Inc. https://supportportal.juniper.net/JSA75740 [No types assigned]
Added
Reference
Juniper Networks, Inc. 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 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2024-21599 NVD
Published Date: 01/11/2024 NVD
Last Modified: 01/19/2024
Source: Juniper Networks, Inc.