An Improper Isolation or Compartmentalization vulnerability in the Packet Forwarding Engine (pfe) of Juniper Networks Junos OS on QFX5000 Series and EX Series allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).
If a specific malformed LACP packet is received by a QFX5000 Series, or an EX4400, EX4100 or EX4650 Series device, an LACP flap will occur resulting in traffic loss.
This issue affects Junos OS on QFX5000 Series, and on EX4400, EX4100 or EX4650 Series:
* 20.4 versions from
20.4R3-S4
before 20.4R3-S8,
* 21.2 versions from
21.2R3-S2
before 21.2R3-S6,
* 21.4 versions from
21.4R2
before 21.4R3-S4,
* 22.1 versions from
22.1R2
before 22.1R3-S3,
* 22.2 versions before 22.2R3-S1,
* 22.3 versions before 22.3R2-S2, 22.3R3,
* 22.4 versions before 22.4R2-S1, 22.4R3.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-04-12
A Use-After-Free vulnerability in the Layer 2 Address Learning Daemon (l2ald)
of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause l2ald to crash leading to a Denial-of-Service (DoS).
In an EVPN-VXLAN scenario, when
state updates are received and processed by the affected system, the correct order of some processing steps is not ensured, which can lead to an l2ald crash and restart. Whether the crash occurs depends on system internal timing which is outside the attackers control.
This issue affects:
Junos OS:
* All versions before 20.4R3-S8,
* 21.2 versions before 21.2R3-S6,
* 21.3 versions before 21.3R3-S5,
* 21.4 versions before 21.4R3-S4,
* 22.1 versions before 22.1R3-S3,
* 22.2 versions before 22.2R3-S1,
* 22.3 versions before 22.3R3,,
* 22.4 versions before 22.4R2;
Junos OS Evolved:
* All versions before 20.4R3-S8-EVO,
* 21.2-EVO versions before 21.2R3-S6-EVO,
* 21.3-EVO
versions before 21.3R3-S5-EVO,
* 21.4-EVO
versions before 21.4R3-S4-EVO,
* 22.1-EVO
versions before 22.1R3-S3-EVO,
* 22.2-EVO
versions before 22.2R3-S1-EVO,
* 22.3-EVO
versions before 22.3R3-EVO,
* 22.4-EVO
versions before 22.4R2-EVO.
CVSS Score
5.3
EPSS Score
0.001
Published
2024-04-12
A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
If an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.
This issue affects Junos OS:
* All versions before 20.4R3-S9,
* 21.2 versions before 21.2R3-S5,
* 21.3 versions before 21.3R3-S5,
* 21.4 versions before 21.4R3-S4,
* 22.1 versions before 22.1R3-S2,
* 22.2 versions before 22.2R3-S2,
* 22.3 versions before 22.3R2-S2, 22.3R3,
* 22.4 versions before 22.4R2.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-04-12
An Incorrect Calculation of Buffer Size vulnerability in Juniper Networks Junos OS SRX 5000 Series devices using SPC2 line cards while ALGs are enabled allows an attacker sending specific crafted packets to cause a transit traffic Denial of Service (DoS).
Continued receipt and processing of these specific packets will sustain the Denial of Service condition.
This issue affects:
Juniper Networks Junos OS SRX 5000 Series with SPC2 with ALGs enabled.
* All versions earlier than 21.2R3-S7;
* 21.4 versions earlier than 21.4R3-S6;
* 22.1 versions earlier than 22.1R3-S5;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S2;
* 22.4 versions earlier than 22.4R3;
* 23.2 versions earlier than 23.2R2.
CVSS Score
7.5
EPSS Score
0.001
Published
2024-04-12
An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows a local, low-privileged attacker to access confidential information on the system.
On all Junos OS and Junos OS Evolved platforms, when NETCONF traceoptions are configured, and a super-user performs specific actions via NETCONF, then a low-privileged user can access sensitive information compromising the confidentiality of the system.
This issue affects:
Junos OS:
* all versions before 21.2R3-S7,
* from 21.4 before 21.4R3-S5,
* 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 23.2R1-S2.
Junos OS Evolved:
* all versions before 21.2R3-S7-EVO,
* from 21.3 before 21.3R3-S5-EVO,
* from 21.4 before 21.4R3-S5-EVO,
* from 22.1 before 22.1R3-S5-EVO,
* from 22.2 before 22.2R3-S3-EVO,
* from 22.3 before 22.3R3-S2-EVO,
* from 22.4 before 22.4R3-EVO,
* from 23.2 before 23.2R1-S2.
CVSS Score
5.0
EPSS Score
0.0
Published
2024-04-12
An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service (DoS).
On all Junos OS and Junos OS Evolved platforms, when LLDP is enabled on a specific interface, and a malformed LLDP packet is received, l2cpd crashes and restarts. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected.
This issue affects:
Junos OS:
* from 21.4 before 21.4R3-S4,
* from 22.1 before 22.1R3-S4,
* from 22.2 before 22.2R3-S2,
* from 22.3 before 22.3R2-S2, 22.3R3-S1,
* from 22.4 before 22.4R3,
* from 23.2 before 23.2R2.
Junos OS Evolved:
* from 21.4-EVO before 21.4R3-S5-EVO,
* from 22.1-EVO before 22.1R3-S4-EVO,
* from 22.2-EVO before 22.2R3-S2-EVO,
* from 22.3-EVO before 22.3R2-S2-EVO, 22.3R3-S1-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.
This issue does not affect:
* Junos OS versions prior to 21.4R1;
* Junos OS Evolved versions prior to 21.4R1-EVO.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-04-12
A Stack-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) component of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause an rpd crash, leading to Denial of Service (DoS).
On all Junos OS and Junos OS Evolved platforms, when EVPN is configured, and a specific EVPN type-5 route is received via BGP, rpd crashes and restarts. Continuous receipt of this specific route will lead to a sustained Denial of Service (DoS) condition.
This issue affects:
Junos OS:
* all versions before 21.2R3-S7,
* from 21.4 before 21.4R3-S5,
* from 22.1 before 22.1R3-S4,
* from 22.2 before 22.2R3-S2,
* from 22.3 before 22.3R3-S1,
* from 22.4 before 22.4R3,
* from 23.2 before 23.2R2.
Junos OS Evolved:
* all versions before 21.4R3-S5-EVO,
* from 22.1-EVO before 22.1R3-S4-EVO,
* from 22.2-EVO before 22.2R3-S2-EVO,
* from 22.3-EVO before 22.3R3-S1-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.
CVSS Score
7.5
EPSS Score
0.002
Published
2024-04-12
An Improper Validation of Specified Type of Input vulnerability in Routing Protocol Daemon (RPD) of Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause Denial of Service (DoS).
If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.
This issue affects:
Junos OS:
* all versions before 21.2R3-S7,
* from 21.3 before 21.3R3-S5,
* from 21.4 before 21.4R3-S5,
* 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 23.2R1-S2, 23.2R2.
Junos OS Evolved:
* all versions before 21.2R3-S7-EVO,
* from 21.3-EVO before 21.3R3-S5-EVO,
* from 21.4-EVO before 21.4R3-S5-EVO,
* from 22.2-EVO before 22.2R3-S3-EVO,
* from 22.3-EVO before 22.3R3-S2-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R1-S2-EVO, 23.2R2-EVO.
This is a related but separate issue than the one described in JSA75739
CVSS Score
7.5
EPSS Score
0.001
Published
2024-04-12
An Improper Check or Handling of Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS).
If an attacker sends a specific MPLS packet, which upon processing, causes an internal loop, that leads to a PFE crash and restart. Continued receipt of these packets leads to a sustained Denial of Service (DoS) condition.
Circuit cross-connect (CCC) needs to be configured on the device for it to be affected by this issue.
This issue only affects MX Series with MPC10, MPC11, LC9600, and MX304.
This issue affects:
Juniper Networks Junos OS
21.4 versions from 21.4R3 earlier than 21.4R3-S5;
22.2 versions from 22.2R2 earlier than 22.2R3-S2;
22.3 versions from 22.3R1 earlier than 22.3R2-S2;
22.3 versions from 22.3R3 earlier than 22.3R3-S1
22.4 versions from 22.4R1 earlier than 22.4R2-S2, 22.4R3;
23.2 versions earlier than 23.2R1-S1, 23.2R2.
CVSS Score
6.5
EPSS Score
0.001
Published
2024-04-12
An Improper Validation of Syntactic Correctness of Input vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS).
If a BGP update is received over an established BGP session which contains a tunnel encapsulation attribute with a specifically malformed TLV, rpd will crash and restart.
This issue affects Juniper Networks
Junos OS:
* 20.4 versions 20.4R1 and later versions earlier than 20.4R3-S9;
* 21.2 versions earlier than 21.2R3-S7;
* 21.3 versions earlier than 21.3R3-S5;
* 21.4 versions earlier than 21.4R3-S5;
* 22.1 versions earlier than 22.1R3-S4;
* 22.2 versions earlier than 22.2R3-S3;
* 22.3 versions earlier than 22.3R3-S1;
* 22.4 versions earlier than 22.4R3;
* 23.2 versions earlier than 23.2R1-S2, 23.2R2;
Junos OS Evolved:
* 20.4-EVO versions 20.4R1-EVO and later versions earlier than 20.4R3-S9-EVO;
* 21.2-EVO versions earlier than 21.2R3-S7-EVO;
* 21.3-EVO versions earlier than 21.3R3-S5-EVO;
* 21.4-EVO versions earlier than 21.4R3-S5-EVO;
* 22.1-EVO versions earlier than 22.1R3-S4-EVO;
* 22.2-EVO versions earlier than 22.2R3-S3-EVO;
* 22.3-EVO versions earlier than 22.3R3-S1-EVO;
* 22.4-EVO versions earlier than 22.4R3-EVO;
* 23.2-EVO versions earlier than 23.2R1-S2-EVO, 23.2R2-EVO;
This issue does not affect Juniper Networks
* Junos OS versions earlier than 20.4R1;
* Junos OS Evolved versions earlier than 20.4R1-EVO.
This is a related but separate issue than the one described in JSA79095.
CVSS Score
7.5
EPSS Score
0.001
Published
2024-04-12