Juniper Junos vulnerabilities

CVE-2022-22203 [MEDIUM] CWE-697 CVE-2022-22203: An Incorrect Comparison vulnerability in PFE of Juniper Networks Junos OS allows an adjacent unauthe An Incorrect Comparison vulnerability in PFE of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). On QFX5000 Series, and EX4600 and EX4650 platforms, the fxpc process will crash followed by the FPC reboot upon receipt of a specific hostbound packet. Continued receipt of these specific packets w

CVE-2022-22154 [MEDIUM] CWE-642 CVE-2022-22154: In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite In a Junos Fusion scenario an External Control of Critical State Data vulnerability in the Satellite Device (SD) control state machine of Juniper Networks Junos OS allows an attacker who is able to make physical changes to the cabling of the device to cause a denial of service (DoS). An SD can get rebooted and subsequently controlled by an Aggregati

CVE-2021-0215 [MEDIUM] CWE-400 CVE-2021-0215: On Juniper Networks Junos EX series, QFX Series, MX Series and SRX branch series devices, a memory l On Juniper Networks Junos EX series, QFX Series, MX Series and SRX branch series devices, a memory leak occurs every time the 802.1X authenticator port interface flaps which can lead to other processes, such as the pfex process, responsible for packet forwarding, to crash and restart. An administrator can use the following CLI command to monitor the s

CVE-2016-1276 [MEDIUM] CWE-399 CVE-2016-1276: Juniper Junos OS before 12.1X46-D50, 12.1X47 before 12.1X47-D23, 12.3X48 before 12.3X48-D25, and 15. Juniper Junos OS before 12.1X46-D50, 12.1X47 before 12.1X47-D23, 12.3X48 before 12.3X48-D25, and 15.1X49 before 15.1X49-D40 on a High-End SRX-Series chassis system with one or more Application Layer Gateways (ALGs) enabled allow remote attackers to cause a denial of service (CPU consumption, fab link failure, or flip-flop failovers) via vectors relate

CVE-2020-1668 [MEDIUM] CWE-400 CVE-2020-1668: On Juniper Networks EX2300 Series, receipt of a stream of specific multicast packets by the layer2 i On Juniper Networks EX2300 Series, receipt of a stream of specific multicast packets by the layer2 interface can cause high CPU load, which could lead to traffic interruption. This issue occurs when multicast packets are received by the layer 2 interface. To check if the device has high CPU load due to this issue, the administrator can issue the follo

CVE-2021-0221 [MEDIUM] CWE-703 CVE-2021-0221: In an EVPN/VXLAN scenario, if an IRB interface with a virtual gateway address (VGA) is configured on In an EVPN/VXLAN scenario, if an IRB interface with a virtual gateway address (VGA) is configured on a PE, a traffic loop may occur upon receipt of specific IP multicast traffic. The traffic loop will cause interface traffic to increase abnormally, ultimately leading to a Denial of Service (DoS) in packet processing. The following command could be use

CVE-2021-0267 [MEDIUM] CWE-20 CVE-2021-0267: An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay An Improper Input Validation vulnerability in the active-lease query portion in JDHCPD's DHCP Relay Agent of Juniper Networks Junos OS allows an attacker to cause a Denial of Service (DoS) by sending a crafted DHCP packet to the device thereby crashing the jdhcpd DHCP service. This is typically configured for Broadband Subscriber Sessions. Continued rec

CVE-2022-22249 [MEDIUM] CWE-664 CVE-2022-22249: An Improper Control of a Resource Through its Lifetime vulnerability in the Packet Forwarding Engine An Improper Control of a Resource Through its Lifetime vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When there is a continuous mac move a memory corruption causes one or more FPCs to crash and reboot. These MAC moves can b

CVE-2021-31362 [MEDIUM] CWE-693 CVE-2021-31362: A Protection Mechanism Failure vulnerability in RPD (routing protocol daemon) of Juniper Networks Ju A Protection Mechanism Failure vulnerability in RPD (routing protocol daemon) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause established IS-IS adjacencies to go down by sending a spoofed hello PDU leading to a Denial of Service (DoS) condition. Continued receipted of these spoofed PDUs will cre

CVE-2021-31370 [MEDIUM] CWE-184 CVE-2021-31370: An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper N An Incomplete List of Disallowed Inputs vulnerability in Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and EX4600 Series allows an adjacent unauthenticated attacker which sends a high rate of specific multicast traffic to cause control traffic received from the network to be dropped. This will impact control protocols

CVE-2021-31366 [MEDIUM] CWE-252 CVE-2021-31366: An Unchecked Return Value vulnerability in the authd (authentication daemon) of Juniper Networks Jun An Unchecked Return Value vulnerability in the authd (authentication daemon) of Juniper Networks Junos OS on MX Series configured for subscriber management / BBE allows an adjacent attacker to cause a crash by sending a specific username. This impacts authentication, authorization, and accounting (AAA) services on the MX devices and leads to a Denia

CVE-2021-31363 [MEDIUM] CWE-835 CVE-2021-31363: In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing prot In an MPLS P2MP environment a Loop with Unreachable Exit Condition vulnerability in the routing protocol daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause high load on RPD which in turn may lead to routing protocol flaps. If a system with sensor-based-stats enabled receives a specific

CVE-2021-31365 [MEDIUM] CWE-400 CVE-2021-31365: An Uncontrolled Resource Consumption vulnerability in Juniper Networks Junos OS on EX2300, EX3400 an An Uncontrolled Resource Consumption vulnerability in Juniper Networks Junos OS on EX2300, EX3400 and EX4300 Series platforms allows an adjacent attacker sending a stream of layer 2 frames will trigger an Aggregated Ethernet (AE) interface to go down and thereby causing a Denial of Service (DoS). By continuously sending a stream of specific layer 2

CVE-2020-1641 [MEDIUM] CWE-362 CVE-2020-1641: A Race Condition vulnerability in Juniper Networks Junos OS LLDP implementation allows an attacker t A Race Condition vulnerability in Juniper Networks Junos OS LLDP implementation allows an attacker to cause LLDP to crash leading to a Denial of Service (DoS). This issue occurs when crafted LLDP packets are received by the device from an adjacent device. Multiple LACP flaps will occur after LLDP crashes. An indicator of compromise is to evaluate log

CVE-2022-22179 [MEDIUM] CWE-20 CVE-2022-22179: A Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Juniper A Improper Validation of Specified Index, Position, or Offset in Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a crash of jdhcpd and thereby a Denial of Service (DoS). In a scenario where DHCP relay or local server is configured the problem can be triggered if

CVE-2022-22196 [MEDIUM] CWE-754 CVE-2022-22196: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon An Improper Check for Unusual or Exceptional Conditions vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker with an established ISIS adjacency to cause a Denial of Service (DoS). The rpd CPU spikes to 100% after a malformed ISIS TLV has been received which

CVE-2022-22172 [MEDIUM] CWE-401 CVE-2022-22172: A Missing Release of Memory after Effective Lifetime vulnerability in the Layer-2 control protocols A Missing Release of Memory after Effective Lifetime vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a memory leak. Continued exploitation can lead to memory exhaustion and thereby a Denial of Service (DoS). This issue occurs when spec

CVE-2022-22176 [MEDIUM] CWE-1286 CVE-2022-22176: An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (j An Improper Validation of Syntactic Correctness of Input vulnerability in the Juniper DHCP daemon (jdhcpd) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker sending a malformed DHCP packet to cause a crash of jdhcpd and thereby a Denial of Service (DoS). If option-82 is configured in a DHCP snooping / -security scenario, jdhc

CVE-2022-22160 [MEDIUM] CWE-391 CVE-2022-22160: An Unchecked Error Condition vulnerability in the subscriber management daemon (smgd) of Juniper Net An Unchecked Error Condition vulnerability in the subscriber management daemon (smgd) of Juniper Networks Junos OS allows an unauthenticated adjacent attacker to cause a crash of and thereby a Denial of Service (DoS). In a subscriber management / broadband edge environment if a single session group configuration contains dual-stack and a pp0 interfa

CVE-2022-22191 [MEDIUM] CWE-410 CVE-2022-22191: A Denial of Service (DoS) vulnerability in the processing of a flood of specific ARP traffic in Juni A Denial of Service (DoS) vulnerability in the processing of a flood of specific ARP traffic in Juniper Networks Junos OS on the EX4300 switch, sent from the local broadcast domain, may allow an unauthenticated network-adjacent attacker to trigger a PFEMAN watchdog timeout, causing the Packet Forwarding Engine (PFE) to crash and restart. After the r