A NULL Pointer Dereference vulnerability in the
packet forwarding engine (pfe) of Juniper Networks Junos OS on MX304, MX with MPC10/11/LC9600, and EX9200 with EX9200-15C allows a locally authenticated attacker with low privileges to cause a Denial of Service (DoS).
In a VPLS or Junos Fusion scenario, the execution of specific show commands will cause all FPCs hosting VPLS sessions or connecting to satellites to crash and restart.
This issue affects Junos on MX304, MX with MPC10/11/LC9600 and EX9200 with EX9200-15C:
* All version before 21.2R3-S1,
* 21.3 versions before 21.3R3,
* 21.4 versions before 21.4R2.
CVSS Score
5.5
EPSS Score
0.001
Published
2024-10-11
A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS allows a local, low-privileged attacker to cause a Denial-of-Service (DoS).
When a specific command is executed, the pfe crashes. This will cause traffic forwarding to be interrupted until the system self-recovers. Repeated execution will create a sustained DoS condition.
This issue only affects MX Series devices with Line cards MPC1-MPC9.
This issue affects:
Junos OS on MX Series:
* All versions before 21.4R3-S9,
* from 22.2 before 22.2R3-S5,
* from 22.3 before 22.3R3-S4,
* from 22.4 before 22.4R3-S2,
* from 23.2 before 23.2R2-S1,
* from 23.4 before 23.4R2.
CVSS Score
5.5
EPSS Score
0.001
Published
2024-10-11
An Uncontrolled Resource Consumption vulnerability in the http daemon (httpd) of Juniper Networks Junos OS on SRX Series, QFX Series, MX Series and EX Series allows an unauthenticated, network-based attacker to cause Denial-of-Service (DoS).
An attacker can send specific HTTPS connection requests to the device, triggering the creation of processes that are not properly terminated. Over time, this leads to resource exhaustion, ultimately causing the device to crash and restart.
The following command can be used to monitor the resource usage:
user@host> show system processes extensive | match mgd | count
This issue affects Junos OS on SRX Series and EX Series:
All versions before 21.4R3-S7,
from 22.2 before 22.2R3-S4,
from 22.3 before 22.3R3-S3,
from 22.4 before 22.4R3-S2,
from 23.2 before 23.2R2-S1,
from 23.4 before 23.4R1-S2, 23.4R2.
CVSS Score
7.5
EPSS Score
0.002
Published
2024-10-11
A Missing Release of Memory after Effective Lifetime vulnerability in the Packet Forwarding Engine (PFE) of the Juniper Networks Junos OS on the MX Series platforms with Trio-based FPCs allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).
In case of channelized Modular Interface Cards (MICs), every physical interface flap operation will leak heap memory. Over a period of time, continuous physical interface flap operations causes local FPC to eventually run out of memory and crash.
Below CLI command can be used to check the memory usage over a period of time:
user@host> show chassis fpc
Temp CPU Utilization (%) CPU Utilization (%) Memory
Utilization (%)
Slot State (C) Total Interrupt 1min 5min
15min DRAM (MB) Heap Buffer
0
Online 43 41
2 2048 49 14
1
Online 43 41
2
2048 49 14
2
Online 43 41
2
2048 49 14
This issue affects Junos OS on MX Series:
* All versions before 21.2R3-S7,
* from 21.4 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,
* from 23.2 before 23.2R2,
* from 23.4 before 23.4R2.
CVSS Score
6.5
EPSS Score
0.0
Published
2024-10-11
An Improper Handling of Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS on MX Series with MPC10/MPC11/LC9600 line cards, EX9200 with EX9200-15C lines cards, MX304 devices, and Juniper Networks Junos OS Evolved on PTX Series, allows an attacker sending malformed DHCP packets to cause ingress packet processing to stop, leading to a Denial of Service (DoS). Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition.
This issue only occurs if DHCP snooping is enabled. See configuration below.
This issue can be detected using following commands. Their output will display the interface status going down:
user@device>show interfaces <if--x/x/x>
user@device>show log messages | match <if--x/x/x>
user@device>show log messages ==> will display the "[Error] Wedge-Detect : Host Loopback Wedge Detected: PFE: no," logs.
This issue affects:
Junos OS on
MX Series
with MPC10/MPC11/LC9600 line cards, EX9200 with EX9200-15C line cards, and MX304:
* All versions before 21.2R3-S7,
* from 21.4 before 21.4R3-S6,
* from 22.2 before 22.2R3-S3,
* all versions of 22.3,
* from 22.4 before 22.4R3,
* from 23.2 before 23.2R2;
Junos OS Evolved on PTX Series:
* from 19.3R1-EVO before 21.2R3-S8-EVO,
* from 21.4-EVO before 21.4R3-S7-EVO,
* from 22.1-EVO before 22.1R3-S6-EVO,
* from 22.2-EVO before 22.2R3-S5-EVO,
* from 22.3-EVO before 22.3R3-S3-EVO,
* from 22.4-EVO before 22.4R3-S1-EVO,
* from 23.2-EVO before 23.2R2-S2-EVO,
* from 23.4-EVO before 23.4R2-EVO.
Junos OS Evolved releases prior to 19.3R1-EVO are unaffected by this vulnerability
CVSS Score
6.5
EPSS Score
0.001
Published
2024-10-11
An Uncontrolled Resource Consumption vulnerability in the H.323 ALG (Application Layer Gateway) of Juniper Networks Junos OS on SRX Series and MX Series with SPC3 and MS-MPC/MIC, allows an unauthenticated network-based attacker to send specific packets causing traffic loss leading to Denial of Service (DoS).
Continued receipt and processing of these specific packets will sustain the Denial of Service condition.
The memory usage can be monitored using the below command.
user@host> show usp memory segment sha data objcache jsf
This issue affects SRX Series and MX Series with SPC3 and MS-MPC/MIC:
* 20.4 before 20.4R3-S10,
* 21.2 before 21.2R3-S6,
* 21.3 before 21.3R3-S5,
* 21.4 before 21.4R3-S6,
* 22.1 before 22.1R3-S4,
* 22.2 before 22.2R3-S2,
* 22.3 before 22.3R3-S1,
* 22.4 before 22.4R3,
* 23.2 before 23.2R2.
CVSS Score
7.5
EPSS Score
0.005
Published
2024-07-11
An Improper Check for Unusual or Exceptional Conditions vulnerability in the the IKE daemon (iked) of Juniper Networks Junos OS on SRX Series, MX Series with SPC3 and NFX350 allows allows an unauthenticated, network-based attacker sending specific mismatching parameters as part of the IPsec negotiation to trigger an iked crash leading to Denial of Service (DoS).
This issue is applicable to all platforms that run iked. This issue affects Junos OS on SRX Series, MX Series with SPC3 and NFX350:
* All versions before 21.2R3-S8,
* from 21.4 before 21.4R3-S7,
* from 22.1 before 22.1R3-S2,
* from 22.2 before 22.2R3-S1,
* from 22.3 before 22.3R2-S1, 22.3R3,
* from 22.4 before 22.4R1-S2, 22.4R2, 22.4R3.
CVSS Score
7.5
EPSS Score
0.004
Published
2024-07-11
A Missing Release of Memory after Effective Lifetime vulnerability in Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial-of-Service (DoS).
In a subscriber management scenario continuous subscriber logins will trigger a memory leak and eventually lead to an FPC crash and restart.
This issue affects Junos OS on MX Series:
* All version before 21.2R3-S6,
* 21.4 versions before 21.4R3-S6,
* 22.1 versions before 22.1R3-S5,
* 22.2 versions before 22.2R3-S3,
* 22.3 versions before 22.3R3-S2,
* 22.4 versions before 22.4R3,
* 23.2 versions before 23.2R2.
CVSS Score
5.3
EPSS Score
0.001
Published
2024-07-11
A Use After Free vulnerability in command processing of Juniper Networks Junos OS on MX Series allows a local, authenticated attacker to cause the broadband edge service manager daemon (bbe-smgd) to crash upon execution of specific CLI commands, creating a Denial of Service (DoS) condition. The process crashes and restarts automatically.
When specific CLI commands are executed, the bbe-smgd daemon attempts to write into an area of memory (mgd socket) that was already closed, causing the process to crash. This process manages and controls the configuration of broadband subscriber sessions and services. While the process is unavailable, additional subscribers will not be able to connect to the device, causing a temporary Denial of Service condition.
This issue only occurs if Graceful Routing Engine Switchover (GRES) and Subscriber Management are enabled.
This issue affects Junos OS:
* All versions before 20.4R3-S5,
* from 21.1 before 21.1R3-S4,
* from 21.2 before 21.2R3-S3,
* from 21.3 before 21.3R3-S5,
* from 21.4 before 21.4R3-S5,
* from 22.1 before 22.1R3,
* from 22.2 before 22.2R3,
* from 22.3 before 22.3R2;
CVSS Score
5.5
EPSS Score
0.001
Published
2024-04-16
A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
On all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition.
This issue affects:
Junos OS:
* all versions before 21.2R3-S6,
* from 21.3 before 21.3R3-S5,
* from 21.4 before 21.4R3-S5,
* from 22.1 before 22.1R3-S3,
* from 22.2 before 22.2R3-S1,
* from 22.3 before 22.3R2-S2, 22.3R3,
* from 22.4 before 22.4R2-S1, 22.4R3.
CVSS Score
7.5
EPSS Score
0.002
Published
2024-04-12