Design/Logic Flaw

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...

CVE-2021-31365

CVE-2021-31365 describes an Uncontrolled Resource Consumption vulnerability in Juniper Networks Junos OS on the EX2300, EX3400 and EX4300 Series. An adjacent attacker sending a stream of specific Layer 2 frames can cause an Aggregated Ethernet (AE) interface to go down, resulting in a Denial of S...

CVE-2021-0243

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service DoS condition. When the firewall policer discard action fails on a Layer 2 port, it wi...

CVE-2021-0242

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...

CVE-2021-0243

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service DoS condition. When the firewall policer discard action fails on a Layer 2 port, it wi...

CVE-2021-0242

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...

CVE-2021-0237

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. Continued receipt and processi...

Command injection

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...

Input validation

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service DoS condition. When the firewall policer discard action fails on a Layer 2 port, it wi...

CVE-2021-0243 Junos OS: EX4300: Stateless firewall policer fails to discard traffic

Improper Handling of Unexpected Data in the firewall policer of Juniper Networks Junos OS on EX4300 switches allows matching traffic to exceed set policer limits, possibly leading to a limited Denial of Service DoS condition. When the firewall policer discard action fails on a Layer 2 port, it wi...

CVE-2021-0243

CVE-2021-0243 affects Juniper Networks Junos OS on the EX4300, where the firewall policer’s discard action can fail on a Layer 2 port, allowing traffic to pass and be forwarded even when policer limits are exceeded. This impacts IPv4 policing (not IPv6 or firewall policing actions) and can manife...

CVE-2021-0242

CVE-2021-0242 describes a DoS vulnerability in Juniper Junos OS on EX4300 switches where processing of DMA buffers can be exhausted by specific valid unicast frames received on an interface without L2PT or dot1x. Affected FPCs may crash and reboot as DMA buffers continually increase, with log ind...

CVE-2021-0242 Junos OS: EX4300: FPC crash upon receipt of specific frames on an interface without L2PT or dot1x configured

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...

CVE-2021-0237 Junos OS: EX4300-MP/EX4600/EX4650/QFX5K Series: Packet Forwarding Engine manager (FXPC) process crashes when deployed in a Virtual Chassis (VC) configuration

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. Continued receipt and processi...

CVE-2021-0237

Technical details of CVE-2021-0237 are not publicly provided in the connected documents; no concrete root-cause or fix details are included. Monitor for updates from vendors and advisories.

PT-2021-12953 · Juniper Networks · Junos

Name of the Vulnerable Software and Affected Versions: Juniper Networks Junos OS on the EX4300 versions prior to 17.3R3-S11 Juniper Networks Junos OS on the EX4300 versions prior to 17.4R2-S13 Juniper Networks Junos OS on the EX4300 versions prior to 17.4R3-S4 Juniper Networks Junos OS on the...

Juniper Junos OS Vulnerability (JSA11136)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA11136 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number. C Tenable Network Security, Inc...

Juniper Junos OS Vulnerability (JSA11135)

The version of Junos OS installed on the remote host is affected by a vulnerability as referenced in the JSA11135 advisory. Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number. C Tenable Network Security, Inc...

The vulnerability of Junos router operating systems of the EX4300-MP, EX4600, and QFX5K series is related to an uncontrolled resource consumption, which allows a attacker to cause service interruptions.

The vulnerability of Junos operating system routers of the EX4300-MP, EX4600, and QFX5K series is related to an uncontrolled resource consumption. Exploiting this vulnerability can allow a malicious actor, operating remotely, to cause service failures by using specially crafted channel layer...

The vulnerability of Junos operating system routers models NFX250, QFX5K, EX2300, EX3400, EX4300 Multigigabit, and EX4600 is related to the occurrence of interpretation conflicts, which allows attackers to cause service failures.

The vulnerability of Junos operating system routers models NFX250, QFX5K, EX2300, EX3400, EX4300 Multigigabit, and EX4600 is related to the occurrence of interpretation conflicts. Exploiting this vulnerability can allow a malicious actor to cause service failures by sending specially crafted...