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CVSS: 7.1EPSS: 0%CPEs: 23EXPL: 0

16 Apr 2024 — An Improper Handling of Exceptional Conditions vulnerability in Juniper Networks Junos OS and Junos OS Evolved allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS), which causes the l2cpd process to crash by sending a specific TLV. The l2cpd process is responsible for layer 2 control protocols, such as STP, RSTP, MSTP, VSTP, ERP, and LLDP. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP, leading to a Denial of Service. Conti... • https://supportportal.juniper.net/JSA79171 • CWE-755: Improper Handling of Exceptional Conditions •

CVSS: 6.9EPSS: 0%CPEs: 8EXPL: 0

16 Apr 2024 — A Use After Free vulnerability in command processing of Juniper Networks Junos OS on MX Series allows a local, authenticated attacker to cause the broadband edge service manager daemon (bbe-smgd) to crash upon execution of specific CLI commands, creating a Denial of Service (DoS) condition. The process crashes and restarts automatically. When specific CLI commands are executed, the bbe-smgd daemon attempts to write into an area of memory (mgd socket) that was already closed, causing the process to crash. Th... • https://supportportal.juniper.net/JSA79109 • CWE-416: Use After Free •

CVSS: 8.2EPSS: 0%CPEs: 15EXPL: 0

12 Apr 2024 — An Improper Check for Unusual or Exceptional Conditions 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 a Denial of Service (DoS). When telemetry requests are sent to the device, and the Dynamic Rendering Daemon (drend) is suspended, the l2ald crashes and restarts due to factors outside the attackers control. Repeated occurrences of these events causes a sustained DoS condition. This issue af... • https://supportportal.juniper.net/JSA79180 • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 8.2EPSS: 0%CPEs: 4EXPL: 0

12 Apr 2024 — An Out-of-bounds Read vulnerability in the advanced forwarding management process aftman of Juniper Networks Junos OS on MX Series with MPC10E, MPC11, MX10K-LC9600 line cards, MX304, and EX9200-15C, may allow an attacker to exploit a stack-based buffer overflow, leading to a reboot of the FPC. Through code review, it was determined that the interface definition code for aftman could read beyond a buffer boundary, leading to a stack-based buffer overflow. This issue affects Junos OS on MX Series and EX9200-1... • https://supportportal.juniper.net/JSA79110 • CWE-125: Out-of-bounds Read •

CVSS: 8.7EPSS: 0%CPEs: 8EXPL: 0

12 Apr 2024 — An Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). When a high amount of specific traffic is received on a SRX4600 device, due to an error in internal packet handling, a consistent rise in CPU memory utilization occurs. This results in packet drops in the traffic and eventually the PFE crashes. A manual reboot of the PF... • https://supportportal.juniper.net/JSA79176 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •

CVSS: 8.7EPSS: 0%CPEs: 9EXPL: 0

12 Apr 2024 — An Improper Check for Unusual or Exceptional Conditions vulnerability in the the Public Key Infrastructure daemon (pkid) of Juniper Networks Junos OS allows an unauthenticated networked attacker to cause Denial of Service (DoS). The pkid is responsible for the certificate verification. Upon a failed verification, the pkid uses all CPU resources and becomes unresponsive to future verification attempts. This means that all subsequent VPN negotiations depending on certificate verification will fail. This CPU u... • https://supportportal.juniper.net/JSA79179 • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 7.1EPSS: 0%CPEs: 16EXPL: 0

12 Apr 2024 — 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... • http://supportportal.juniper.net/JSA79184 • CWE-416: Use After Free •

CVSS: 7.1EPSS: 0%CPEs: 10EXPL: 0

12 Apr 2024 — 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, *... • http://supportportal.juniper.net/JSA79187 • CWE-820: Missing Synchronization •

CVSS: 7.1EPSS: 0%CPEs: 9EXPL: 0

12 Apr 2024 — 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 fro... • http://supportportal.juniper.net/JSA79089 • CWE-653: Improper Isolation or Compartmentalization •

CVSS: 8.7EPSS: 0%CPEs: 9EXPL: 0

12 Apr 2024 — A Stack-based Buffer Overflow vulnerability in Flow Processing Daemon (flowd) of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to cause Denial of Service (DoS). On all Junos OS MX Series platforms with SPC3 and MS-MPC/-MIC, when URL filtering is enabled and a specific URL request is received and processed, flowd will crash and restart. Continuous reception of the specific URL request will lead to a sustained Denial of Service (DoS) condition. This issue affects: Junos OS: * all... • https://supportportal.juniper.net/JSA79092 • CWE-121: Stack-based Buffer Overflow •