An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause Denial of Service (DoS).
When a BGP UPDATE with malformed path attribute is received over an established BGP session, rpd crashes and restarts.
Continuous receipt of a BGP UPDATE with a specifically malformed path attribute will create a sustained Denial of Service (DoS) condition for impacted devices. While this issue affects systems running 32-bit and 64-bit systems, the probability of impact on 64-bit system is extremely low.
According to KB25803 https://supportportal.juniper.net/s/article/Junos-How-to-check-if-Junos-OS-is-64-or-32-bit-on-a-router , customers can confirm 32-bit or 64-bit system via the ' show version detail ' command:
lab@router> show version detail| match 32
JUNOS 32-bit kernel Software Suite
lab@router> show version detail| match 64
JUNOS 64-bit kernel Software Suite
This issue affects:
Juniper Networks Junos OS:
* All versions before 21.4R3-S8,
* from 22.2 before 22.2R3-S4,
* from 22.4 before 22.4R3-S3,
* from 23.2 before 23.2R2-S1,
* from 23.4 before 23.4R1-S2, 23.4R2.
Juniper Networks Junos OS Evolved: * All versions before 21.4R3-S8-EVO,
* from 22.2 before 22.2R3-S4-EVO,
* from 22.4 before 22.4R3-S3-EVO,
* from 23.2 before 23.2R2-S1-EVO,
* from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.
CVSS Score
5.9
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
A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in the AgentD process of Juniper Networks Junos OS allows an attacker who is already causing impact to established sessions which generates counter changes picked up by the AgentD process during telemetry polling, to move the AgentD process into a state where AgentD attempts to reap an already destroyed sensor. This reaping attempt then leads to memory corruption causing the FPC to crash which is a Denial of Service (DoS).
The FPC will recover automatically without user intervention after the crash.
This issue affects Junos OS:
* 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-S3,
* From 23.2 before 23.2R2-S2,
* From 23.4 before 23.4R2.
This issue does not affect Junos OS Evolved.
CVSS Score
5.9
EPSS Score
0.003
Published
2024-10-11
An Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the command-line interface (CLI) of Juniper Networks Junos OS on SRX Series devices allows a local, low-privileged user with access to the Junos CLI to view the contents of protected files on the file system.
Through the execution of crafted CLI commands, a user with limited permissions (e.g., a low privilege login class user) can access protected files that should not be accessible to the user. These files may contain sensitive information that can be used to cause further impact to the system.
This issue affects Junos OS on SRX Series:
* All versions before 21.4R3-S8,
* 22.2 before 22.2R3-S5,
* 22.3 before 22.3R3-S4,
* 22.4 before 22.4R3-S4,
* 23.2 before 23.2R2-S2,
* 23.4 before 23.4R2.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-10-11
An Improper Validation of Consistency within Input vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
In some cases, rpd fails to restart requiring a manual restart via the 'restart routing' CLI command.
This issue only affects systems with BGP traceoptions enabled and
requires a BGP session to be already established. Systems without BGP traceoptions enabled are not affected by this issue.
This issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.
This issue affects:
Junos OS:
* All versions before 21.4R3-S8,
* 22.2 before 22.2R3-S5,
* 22.3 before 22.3R3-S4,
* 22.4 before 22.4R3-S3,
* 23.2 before 23.2R2-S2,
* 23.4 before 23.4R2;
Junos OS Evolved:
* All versions before 21.4R3-S8-EVO,
* 22.2-EVO before 22.2R3-S5-EVO,
* 22.3-EVO before 22.3R3-S4-EVO,
* 22.4-EVO before 22.4R3-S3-EVO,
* 23.2-EVO before 23.2R2-S2-EVO,
* 23.4-EVO before 23.4R2-EVO.
CVSS Score
7.5
EPSS Score
0.003
Published
2024-10-09
An Out-of-Bounds Read vulnerability in
the routing protocol daemon (rpd) of
Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specifically malformed BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems configured in
either of two ways:
* systems with BGP traceoptions enabled
* systems with BGP traffic engineering
configured
This issue can affect iBGP and eBGP with
any address family
configured. The specific attribute involved is non-transitive, and will not propagate across a network.
This issue affects:
Junos OS:
* All versions before 21.4R3-S8,
* 22.2 before 22.2R3-S5,
* 22.3 before 22.3R3-S4,
* 22.4 before 22.4R3-S3,
* 23.2 before 23.2R2-S2,
* 23.4 before 23.4R2;
Junos OS Evolved:
* All versions before 21.4R3-S8-EVO,
* 22.2-EVO before 22.2R3-S5-EVO,
* 22.3-EVO before 22.3R3-S4-EVO,
* 22.4-EVO before 22.4R3-S3-EVO,
* 23.2-EVO before 23.2R2-S2-EVO,
* 23.4-EVO before 23.4R2-EVO.
CVSS Score
7.5
EPSS Score
0.003
Published
2024-10-09
An Improper Handling of Exceptional Conditions vulnerability in the routing protocol daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated network-based attacker sending a specific BGP packet to cause rpd to crash and restart, resulting in a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
This issue only affects systems with BGP traceoptions enabled and
requires a BGP session to be already established. Systems without BGP traceoptions enabled are not affected by this issue.
This issue affects iBGP and eBGP, and both IPv4 and IPv6 are affected by this vulnerability.
This issue affects:
Junos OS:
* All versions before 21.2R3-S8,
* from 21.4 before 21.4R3-S8,
* from 22.2 before 22.2R3-S4,
* from 22.3 before 22.3R3-S4,
* from 22.4 before 22.4R3-S3,
* from 23.2 before 23.2R2-S1,
* from 23.4 before 23.4R2;
Junos OS Evolved:
* All versions before 21.2R3-S8-EVO,
* from 21.4-EVO before 21.4R3-S8-EVO,
* from 22.2-EVO before 22.2R3-S4-EVO,
* from 22.3-EVO before 22.3R3-S4-EVO,
* from 22.4-EVO before 22.4R3-S3-EVO,
* from 23.2-EVO before 23.2R2-S1-EVO,
* from 23.4-EVO before 23.4R2-EVO.
CVSS Score
7.5
EPSS Score
0.004
Published
2024-10-09
A Missing Release of Memory after Effective Lifetime vulnerability in the routing process daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an attacker to send a malformed BGP Path attribute update which allocates memory used to log the bad path attribute. This memory is not properly freed in all circumstances, leading to a Denial of Service (DoS).
Consumed memory can be freed by manually restarting Routing Protocol Daemon (rpd).
Memory utilization could be monitored by:
user@host> show system memory or show system monitor memory status
This issue affects:
Junos OS: * All versions before 21.2R3-S8,
* from 21.4 before 21.4R3-S8,
* from 22.2 before 22.2R3-S4,
* from 22.3 before 22.3R3-S3,
* from 22.4 before 22.4R3-S3,
* from 23.2 before 23.2R2-S1,
* from 23.4 before 23.4R1-S2, 23.4R2.
Junos OS Evolved:
* All versions before 21.2R3-S8-EVO,
* from 21.4 before 21.4R3-S8-EVO,
* from 22.2 before 22.2R3-S4-EVO,
* from 22.3 before 22.3R3-S3-EVO,
* from 22.4 before 22.4R3-S3-EVO,
* from 23.2 before 23.2R2-S1-EVO,
* from 23.4 before 23.4R1-S2-EVO, 23.4R2-EVO.
CVSS Score
7.5
EPSS Score
0.003
Published
2024-07-11
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.
CVSS Score
6.5
EPSS Score
0.002
Published
2024-07-11
An Improper Handling of Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
When conflicting information (IP or ISO addresses) about a node is added to the Traffic Engineering (TE) database and then a subsequent operation attempts to process these, rpd will crash and restart.
This issue affects:
Junos OS:
* 22.4 versions before 22.4R3-S1,
* 23.2 versions before 23.2R2,
* 23.4 versions before 23.4R1-S1, 23.4R2,
This issue does not affect Junos OS versions earlier than 22.4R1.
Junos OS Evolved:
* 22.4-EVO versions before 22.4R3-S2-EVO,
* 23.2-EVO versions before 23.2R2-EVO,
* 23.4-EVO versions before 23.4R1-S1-EVO, 23.4R2-EVO,
This issue does not affect Junos OS Evolved versions earlier than
before 22.4R1.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-07-11