Vulnerabilities > Juniper > Junos > 20.3

DATE CVE VULNERABILITY TITLE RISK
2021-04-22 CVE-2021-0242 Allocation of Resources Without Limits or Throttling vulnerability in Juniper Junos
A vulnerability due to the improper handling of direct memory access (DMA) buffers on EX4300 switches on Juniper Networks Junos OS allows an attacker sending specific unicast frames to trigger a Denial of Service (DoS) condition by exhausting DMA buffers, causing the FPC to crash and the device to restart.
low complexity
juniper CWE-770
6.1
2021-04-22 CVE-2021-0241 Improper Handling of Exceptional Conditions vulnerability in Juniper Junos
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash with a core dump if a specific DHCPv6 packet is received, resulting in a restart of the daemon.
low complexity
juniper CWE-755
3.3
2021-04-22 CVE-2021-0240 Improper Handling of Exceptional Conditions vulnerability in Juniper Junos
On Juniper Networks Junos OS platforms configured as DHCPv6 local server or DHCPv6 Relay Agent, the Juniper Networks Dynamic Host Configuration Protocol Daemon (JDHCPD) process might crash if a malformed DHCPv6 packet is received, resulting in a restart of the daemon.
2.9
2021-04-22 CVE-2021-0238 Resource Exhaustion vulnerability in Juniper Junos 17.3/18.1/18.2
When a MX Series is configured as a Broadband Network Gateway (BNG) based on Layer 2 Tunneling Protocol (L2TP), executing certain CLI command may cause the system to run out of disk space, excessive disk usage may cause other complications.
local
low complexity
juniper CWE-400
2.1
2021-04-22 CVE-2021-0237 Unspecified vulnerability in Juniper Junos 15.1/17.3
On Juniper Networks EX4300-MP Series, EX4600 Series, EX4650 Series, QFX5K Series deployed as a Virtual Chassis with a specific Layer 2 circuit configuration, Packet Forwarding Engine manager (FXPC) process may crash and restart upon receipt of specific layer 2 frames.
low complexity
juniper
3.3
2021-04-22 CVE-2021-0236 Improper Check for Unusual or Exceptional Conditions vulnerability in Juniper Junos
Due to an improper check for unusual or exceptional conditions in Juniper Networks Junos OS and Junos OS Evolved the Routing Protocol Daemon (RPD) service, upon receipt of a specific matching BGP packet meeting a specific term in the flowspec configuration, crashes and restarts causing a Denial of Service (DoS).
network
low complexity
juniper CWE-754
6.8
2021-04-22 CVE-2021-0235 Incorrect Default Permissions vulnerability in Juniper Junos
On SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, vSRX Series devices using tenant services on Juniper Networks Junos OS, due to incorrect permission scheme assigned to tenant system administrators, a tenant system administrator may inadvertently send their network traffic to one or more tenants while concurrently modifying the overall device system traffic management, affecting all tenants and the service provider.
local
low complexity
juniper CWE-276
4.6
2021-04-22 CVE-2021-0230 Memory Leak vulnerability in Juniper Junos
On Juniper Networks SRX Series devices with link aggregation (lag) configured, executing any operation that fetches Aggregated Ethernet (AE) interface statistics, including but not limited to SNMP GET requests, causes a slow kernel memory leak.
network
low complexity
juniper CWE-401
5.0
2021-04-22 CVE-2021-0229 Resource Exhaustion vulnerability in Juniper Junos 16.1/16.2/17.1
An uncontrolled resource consumption vulnerability in Message Queue Telemetry Transport (MQTT) server of Juniper Networks Junos OS allows an attacker to cause MQTT server to crash and restart leading to a Denial of Service (DoS) by sending a stream of specific packets.
network
low complexity
juniper CWE-400
5.0
2021-04-22 CVE-2021-0228 Improper Check for Unusual or Exceptional Conditions vulnerability in Juniper Junos 15.1/17.3
An improper check for unusual or exceptional conditions vulnerability in Juniper Networks MX Series platforms with Trio-based MPC (Modular Port Concentrator) deployed in (Ethernet VPN) EVPN-(Virtual Extensible LAN) VXLAN configuration, may allow an attacker sending specific Layer 2 traffic to cause Distributed Denial of Service (DDoS) protection to trigger unexpectedly, resulting in traffic impact.
low complexity
juniper CWE-754
3.3