
CVE-2024-21618 – Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is received, l2cpd crashes
https://notcve.org/view.php?id=CVE-2024-21618
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 •

CVE-2024-21615 – Junos OS and Junos OS Evolved: A low-privileged user can access confidential information
https://notcve.org/view.php?id=CVE-2024-21615
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 •

CVE-2024-21598 – Junos OS and Junos OS Evolved: A malformed BGP tunnel encapsulation attribute will lead to an rpd crash
https://notcve.org/view.php?id=CVE-2024-21598
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 •

CVE-2024-21590 – Junos OS Evolved: Packets which are not destined to the device can reach the RE
https://notcve.org/view.php?id=CVE-2024-21590
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 •

CVE-2024-21613 – Junos OS and Junos OS Evolved: A link flap causes patroot memory leak which leads to rpd crash
https://notcve.org/view.php?id=CVE-2024-21613
12 Jan 2024 — A Missing Release of Memory after Effective Lifetime vulnerability in Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause an rpd crash, leading to Denial of Service (DoS). On all Junos OS and Junos OS Evolved platforms, when traffic engineering is enabled for OSPF or ISIS, and a link flaps, a patroot memory leak is observed. This memory leak, over time, will lead to an rpd crash and restart. The memory usage can be monitored u... • https://supportportal.juniper.net/JSA75754 • CWE-401: Missing Release of Memory after Effective Lifetime •

CVE-2024-21612 – Junos OS Evolved: Specific TCP traffic causes OFP core and restart of RE
https://notcve.org/view.php?id=CVE-2024-21612
12 Jan 2024 — An Improper Handling of Syntactically Invalid Structure vulnerability in Object Flooding Protocol (OFP) service of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). On all Junos OS Evolved platforms, when specific TCP packets are received on an open OFP port, the OFP crashes leading to a restart of Routine Engine (RE). Continuous receipt of these specific TCP packets will lead to a sustained Denial of Service (DoS) condition. This issue a... • https://supportportal.juniper.net/JSA75753 • CWE-228: Improper Handling of Syntactically Invalid Structure •

CVE-2024-21611 – Junos OS and Junos OS Evolved: In a jflow scenario continuous route churn will cause a memory leak and eventually an rpd crash
https://notcve.org/view.php?id=CVE-2024-21611
12 Jan 2024 — A Missing Release of Memory after Effective Lifetime vulnerability in the Routing Protocol Daemon (rpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). In a Juniper Flow Monitoring (jflow) scenario route churn that causes BGP next hops to be updated will cause a slow memory leak and eventually a crash and restart of rpd. Thread level memory utilization for the areas where the leak occurs can be checked using the below co... • https://supportportal.juniper.net/JSA75752 • CWE-401: Missing Release of Memory after Effective Lifetime •

CVE-2024-21604 – Junos OS Evolved: A high rate of specific traffic will cause a complete system outage
https://notcve.org/view.php?id=CVE-2024-21604
12 Jan 2024 — An Allocation of Resources Without Limits or Throttling vulnerability in the kernel of Juniper Networks Junos OS Evolved allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If a high rate of specific valid packets are processed by the routing engine (RE) this will lead to a loss of connectivity of the RE with other components of the chassis and thereby a complete and persistent system outage. Please note that a carefully designed lo0 firewall filter will block or limit thes... • https://supportportal.juniper.net/JSA75745 • CWE-770: Allocation of Resources Without Limits or Throttling •

CVE-2024-21602 – Junos OS Evolved: ACX7024, ACX7100-32C and ACX7100-48L: Traffic stops when a specific IPv4 UDP packet is received by the RE
https://notcve.org/view.php?id=CVE-2024-21602
12 Jan 2024 — A NULL Pointer Dereference vulnerability in Juniper Networks Junos OS Evolved on ACX7024, ACX7100-32C and ACX7100-48L allows an unauthenticated, network-based attacker to cause a Denial of Service (DoS). If a specific IPv4 UDP packet is received and sent to the Routing Engine (RE) packetio crashes and restarts which causes a momentary traffic interruption. Continued receipt of such packets will lead to a sustained DoS. This issue does not happen with IPv6 packets. This issue affects Juniper Networks Junos O... • https://supportportal.juniper.net/JSA75743 • CWE-476: NULL Pointer Dereference •

CVE-2024-21596 – Junos OS and Junos OS Evolved: A specific BGP UPDATE message will cause a crash in the backup Routing Engine in NSR-enabled devices
https://notcve.org/view.php?id=CVE-2024-21596
12 Jan 2024 — A Heap-based Buffer Overflow vulnerability in the Routing Protocol Daemon (RPD) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, network based attacker to cause a Denial of Service (DoS). If an attacker sends a specific BGP UPDATE message to the device, this will cause a memory overwrite and therefore an RPD crash and restart in the backup Routing Engine (RE). Continued receipt of these packets will cause a sustained Denial of Service (DoS) condition in the backup RE. The primary... • https://supportportal.juniper.net/JSA75735 • CWE-122: Heap-based Buffer Overflow CWE-787: Out-of-bounds Write •