Juniper Networks Junos Os vulnerabilities

CVE-2021-0282 [HIGH] CWE-754 CVE-2021-0282: On Juniper Networks Junos OS devices with Multipath or add-path feature enabled, processing a specif On Juniper Networks Junos OS devices with Multipath or add-path feature enabled, processing a specific BGP UPDATE can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this UPDATE message will create a sustained Denial of Service (DoS) condition. This BGP UPDATE message can p

CVE-2021-0295 [MEDIUM] CWE-697 CVE-2021-0295: A vulnerability in the Distance Vector Multicast Routing Protocol (DVMRP) of Juniper Networks Junos A vulnerability in the Distance Vector Multicast Routing Protocol (DVMRP) of Juniper Networks Junos OS on the QFX10K Series switches allows an attacker to trigger a packet forwarding loop, leading to a partial Denial of Service (DoS). The issue is caused by DVMRP packets looping on a multi-homed Ethernet Segment Identifier (ESI) when VXLAN is configure

CVE-2021-0288 [MEDIUM] CWE-754 CVE-2021-0288: A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series A vulnerability in the processing of specific MPLS packets in Juniper Networks Junos OS on MX Series and EX9200 Series devices with Trio-based MPCs (Modular Port Concentrators) may cause FPC to crash and lead to a Denial of Service (DoS) condition. Continued receipt of this packet will sustain the Denial of Service (DoS) condition. This issue only aff

CVE-2021-0293 [MEDIUM] CWE-401 CVE-2021-0293: A vulnerability in Juniper Networks Junos OS caused by Missing Release of Memory after Effective Lif A vulnerability in Juniper Networks Junos OS caused by Missing Release of Memory after Effective Lifetime leads to a memory leak each time the CLI command 'show system connections extensive' is executed. The amount of memory leaked on each execution depends on the number of TCP connections from and to the system. Repeated execution will cause more mem

CVE-2021-0294 [MEDIUM] CWE-474 CVE-2021-0294: A vulnerability in Juniper Networks Junos OS, which only affects the release 18.4R2-S5, where a func A vulnerability in Juniper Networks Junos OS, which only affects the release 18.4R2-S5, where a function is inconsistently implemented on Juniper Networks Junos QFX5000 Series and EX4600 Series, and if "storm-control enhanced" is configured, can lead to the enhanced storm control filter group not be installed. It will cause storm control not to work h

CVE-2021-0291 [MEDIUM] CWE-497 CVE-2021-0291: An Exposure of System Data vulnerability in Juniper Networks Junos OS and Junos OS Evolved, where a An Exposure of System Data vulnerability in Juniper Networks Junos OS and Junos OS Evolved, where a sensitive system-level resource is not being sufficiently protected, allows a network-based unauthenticated attacker to send specific traffic which partially reaches this resource. A high rate of specific traffic may lead to a partial Denial of Service (

CVE-2021-0287 [MEDIUM] CWE-754 CVE-2021-0287: In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evol In a Segment Routing ISIS (SR-ISIS)/MPLS environment, on Juniper Networks Junos OS and Junos OS Evolved devices, configured with ISIS Flexible Algorithm for Segment Routing and sensor-based statistics, a flap of a ISIS link in the network, can lead to a routing process daemon (RPD) crash and restart, causing a Denial of Service (DoS). Continued link f

CVE-2021-0289 [MEDIUM] CWE-367 CVE-2021-0289: When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) inte When user-defined ARP Policer is configured and applied on one or more Aggregated Ethernet (AE) interface units, a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability between the Device Control Daemon (DCD) and firewall process (dfwd) daemons of Juniper Networks Junos OS allows an attacker to bypass the user-defined ARP Policer. In this pa

CVE-2021-0290 [MEDIUM] CWE-755 CVE-2021-0290: Improper Handling of Exceptional Conditions in Ethernet interface frame processing of Juniper Networ Improper Handling of Exceptional Conditions in Ethernet interface frame processing of Juniper Networks Junos OS allows an attacker to send specially crafted frames over the local Ethernet segment, causing the interface to go into a down state, resulting in a Denial of Service (DoS) condition. The interface does not recover on its own and the FPC must

CVE-2021-0254 [CRITICAL] CWE-131 CVE-2021-0254: A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allo A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unauthenticated remote attacker to send specially crafted packets to the device, triggering a partial Denial of Service (DoS) condition, or leading to remote code execution (RCE). Continued receipt and processing of these packets will sustain the

CVE-2021-0249 [CRITICAL] CWE-120 CVE-2021-0249: On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet For On SRX Series devices configured with UTM services a buffer overflow vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS may allow an attacker to arbitrarily execute code or commands on the target to take over or otherwise impact the device by sending crafted packets to or through the device. This issue affects: Juniper

CVE-2021-0266 [CRITICAL] CWE-321 CVE-2021-0266: The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos The use of multiple hard-coded cryptographic keys in cSRX Series software in Juniper Networks Junos OS allows an attacker to take control of any instance of a cSRX deployment through device management services. This issue affects: Juniper Networks Junos OS on cSRX Series: All versions prior to 20.2R3; 20.3 versions prior to 20.3R2; 20.4 versions prio

CVE-2021-0248 [CRITICAL] CWE-798 CVE-2021-0248: This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Cr This issue is not applicable to NFX NextGen Software. On NFX Series devices the use of Hard-coded Credentials in Juniper Networks Junos OS allows an attacker to take over any instance of an NFX deployment. This issue is only exploitable through administrative interfaces. This issue affects: Juniper Networks Junos OS versions prior to 19.1R1 on NFX S

CVE-2021-0268 [CRITICAL] CWE-79 CVE-2021-0268: An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in An Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting') weakness in J-web of Juniper Networks Junos OS leads to buffer overflows, segment faults, or other impacts, which allows an attacker to modify the integrity of the device and exfiltration information from the device without authentication. The weakness can be exp

CVE-2021-0261 [HIGH] CWE-125 CVE-2021-0261: A vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Fir A vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through with Web-Redirect, and Captive Portal allows an unauthenticated attacker to cause an extended Denial of Service (DoS) for these services by sending a high number of specific requests. This issue affects: Juniper Networks

CVE-2021-0227 [HIGH] CWE-119 CVE-2021-0227: An improper restriction of operations within the bounds of a memory buffer vulnerability in Juniper An improper restriction of operations within the bounds of a memory buffer vulnerability in Juniper Networks Junos OS J-Web on SRX Series devices allows an attacker to cause Denial of Service (DoS) by sending certain crafted HTTP packets. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. When thi

CVE-2021-0244 [HIGH] CWE-362 CVE-2021-0244: A signal handler race condition exists in the Layer 2 Address Learning Daemon (L2ALD) of Juniper Net A signal handler race condition exists in the Layer 2 Address Learning Daemon (L2ALD) of Juniper Networks Junos OS due to the absence of a specific protection mechanism to avoid a race condition which may allow an attacker to bypass the storm-control feature on devices. This issue is a corner case and only occurs during specific actions taken by an admi

CVE-2021-0250 [HIGH] CVE-2021-0250: In segment routing traffic engineering (SRTE) environments where the BGP Monitoring Protocol (BMP) f In segment routing traffic engineering (SRTE) environments where the BGP Monitoring Protocol (BMP) feature is enable, a vulnerability in the Routing Protocol Daemon (RPD) process of Juniper Networks Junos OS allows an attacker to send a specific crafted BGP update message causing the RPD service to core, creating a Denial of Service (DoS) Condition. Continued r

CVE-2021-0260 [HIGH] CWE-285 CVE-2021-0260: An improper authorization vulnerability in the Simple Network Management Protocol daemon (snmpd) ser An improper authorization vulnerability in the Simple Network Management Protocol daemon (snmpd) service of Juniper Networks Junos OS leads an unauthenticated attacker being able to perform SNMP read actions, an Exposure of System Data to an Unauthorized Control Sphere, or write actions to OIDs that support write operations, against the device without a

CVE-2021-0235 [HIGH] CWE-276 CVE-2021-0235: On SRX1500, SRX4100, SRX4200, SRX4600, SRX5000 Series with SPC2/SPC3, vSRX Series devices using tena 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 overa