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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: 7.1EPSS: 0%CPEs: 2EXPL: 0

12 Apr 2024 — A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS Evolved allows an unauthenticated, adjacent attacker to cause a Denial of Service (DoS). When Layer 2 traffic is sent through a logical interface, MAC learning happens. If during this process, the interface flaps, an Advanced Forwarding Toolkit manager (evo-aftmand-bt) core is observed. This leads to a PFE restart. The crash reoccurs if the same sequence of events happens, which will lead to a sustain... • https://supportportal.juniper.net/JSA79181 • CWE-476: NULL Pointer Dereference •

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: 8.7EPSS: 0%CPEs: 13EXPL: 0

12 Apr 2024 — 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: Juno... • https://supportportal.juniper.net/JSA79094 • CWE-121: Stack-based Buffer Overflow •

CVSS: 8.7EPSS: 0%CPEs: 17EXPL: 0

12 Apr 2024 — 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, * fr... • https://supportportal.juniper.net/JSA79095 • CWE-1287: Improper Validation of Specified Type of Input •

CVSS: 6.7EPSS: 0%CPEs: 1EXPL: 0

12 Apr 2024 — A Cleartext Storage in a File on Disk vulnerability in Juniper Networks Junos OS Evolved ACX Series devices using the Paragon Active Assurance Test Agent software installed on network devices allows a local, authenticated attacker with high privileges to read all other users login credentials. This issue affects only Juniper Networks Junos OS Evolved ACX Series devices using the Paragon Active Assurance Test Agent software installed on these devices from 23.1R1-EVO through 23.2R2-EVO. This issue does not af... • https://supportportal.juniper.net/JSA79104 • CWE-313: Cleartext Storage in a File or on Disk •

CVSS: 7.1EPSS: 0%CPEs: 14EXPL: 0

12 Apr 2024 — 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. Al... • https://supportportal.juniper.net/JSA75759 • CWE-788: Access of Memory Location After End of Buffer •

CVSS: 5.1EPSS: 0%CPEs: 15EXPL: 0

12 Apr 2024 — 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 2... • https://supportportal.juniper.net/JSA75756 • CWE-276: Incorrect Default Permissions •

CVSS: 8.7EPSS: 0%CPEs: 20EXPL: 0

12 Apr 2024 — 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 th... • http://supportportal.juniper.net/JSA75739 • CWE-1286: Improper Validation of Syntactic Correctness of Input •

CVSS: 7.1EPSS: 0%CPEs: 7EXPL: 0

12 Apr 2024 — An Improper Input Validation vulnerability in Juniper Tunnel Driver (jtd) and ICMP module of Juniper Networks Junos OS Evolved allows an unauthenticated attacker within the MPLS administrative domain to send specifically crafted packets to the Routing Engine (RE) to cause a Denial of Service (DoS). When specifically crafted transit MPLS IPv4 packets are received by the Packet Forwarding Engine (PFE), these packets are internally forwarded to the RE. Continued receipt of these packets may create a sustained ... • https://supportportal.juniper.net/JSA75728 • CWE-20: Improper Input Validation •