34 results (0.006 seconds)

CVSS: 7.8EPSS: 0%CPEs: 80EXPL: 0

14 Jul 2023 — An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX10000 Series allows a network based attacker to cause a Denial of Service (DoS). If a specific valid IP packet is received and that packet needs to be routed over a VXLAN tunnel, this will result in a PFE wedge condition due to which traffic gets impacted. As this is not a crash and restart scenario, this condition will persist until the system is rebooted to recover... • https://supportportal.juniper.net/JSA71642 • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 6.5EPSS: 0%CPEs: 122EXPL: 0

17 Apr 2023 — An Improper Check or Handling of Exceptional Conditions vulnerability in packet processing of Juniper Networks Junos OS on QFX10002 allows an unauthenticated, adjacent attacker on the local broadcast domain sending a malformed packet to the device, causing all PFEs other than the inbound PFE to wedge and to eventually restart, resulting in a Denial of Service (DoS) condition. Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition. This issue can only be tri... • https://supportportal.juniper.net/JSA70584 • CWE-703: Improper Check or Handling of Exceptional Conditions •

CVSS: 7.8EPSS: 0%CPEs: 102EXPL: 0

17 Apr 2023 — An Improper Check or Handling of Exceptional Conditions within the storm control feature of Juniper Networks Junos OS allows an attacker sending a high rate of traffic to cause a Denial of Service. Continued receipt and processing of these packets will create a sustained Denial of Service (DoS) condition. Storm control monitors the level of applicable incoming traffic and compares it with the level specified. If the combined level of the applicable traffic exceeds the specified level, the switch drops packe... • https://supportportal.juniper.net/JSA70589 • CWE-703: Improper Check or Handling of Exceptional Conditions CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 5.3EPSS: 0%CPEs: 112EXPL: 0

17 Apr 2023 — A Use After Free vulnerability in the Layer 2 Address Learning Manager (l2alm) of Juniper Networks Junos OS on QFX Series allows an adjacent attacker to cause the Packet Forwarding Engine to crash and restart, leading to a Denial of Service (DoS). The PFE may crash when a lot of MAC learning and aging happens, but due to a Race Condition (Concurrent Execution using Shared Resource with Improper Synchronization) that is outside the attackers direct control. This issue affects: Juniper Networks Junos OS versi... • https://supportportal.juniper.net/JSA70610 • CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE-416: Use After Free •

CVSS: 6.5EPSS: 0%CPEs: 127EXPL: 0

17 Apr 2023 — An Improper Handling of Missing Values vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker to cause a dcpfe process core and thereby a Denial of Service (DoS). Continued receipt of these specific frames will cause a sustained Denial of Service condition. This issue occurs when a specific malformed ethernet frame is received. This issue affects Juniper Networks Junos OS on QFX10000 Series, PTX1000 Series Series: All versions prior to 1... • https://supportportal.juniper.net/JSA70612 • CWE-230: Improper Handling of Missing Values •

CVSS: 7.8EPSS: 0%CPEs: 64EXPL: 0

12 Jan 2023 — An Allocation of Resources Without Limits or Throttling vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows a network-based, unauthenticated attacker to cause a Denial of Service (DoS). On QFX10K Series, Inter-Chassis Control Protocol (ICCP) is used in MC-LAG topologies to exchange control information between the devices in the topology. ICCP connection flaps and sync issues will be observed due to excessive specific traffic to the local device. This issue affects Juniper... • https://kb.juniper.net/JSA70199 • CWE-770: Allocation of Resources Without Limits or Throttling •

CVSS: 6.5EPSS: 0%CPEs: 81EXPL: 0

12 Jan 2023 — A Missing Release of Memory after Effective Lifetime vulnerability in Flexible PIC Concentrator (FPC) of Juniper Networks Junos OS allows an adjacent, unauthenticated attacker from the same shared physical or logical network, to cause a heap memory leak and leading to FPC crash. On all Junos PTX Series and QFX10000 Series, when specific EVPN VXLAN Multicast packets are processed, an FPC heap memory leak is observed. The FPC memory usage can be monitored using the CLI command "show heap extensive". Following... • https://kb.juniper.net/JSA70210 • CWE-401: Missing Release of Memory after Effective Lifetime •

CVSS: 7.8EPSS: 0%CPEs: 225EXPL: 1

18 Oct 2022 — On QFX10000 Series devices using Juniper Networks Junos OS when configured as transit IP/MPLS penultimate hop popping (PHP) nodes with link aggregation group (LAG) interfaces, an Improper Validation of Specified Index, Position, or Offset in Input weakness allows an attacker sending certain IP packets to cause multiple interfaces in the LAG to detach causing a Denial of Service (DoS) condition. Continued receipt and processing of these packets will sustain the Denial of Service. This issue affects IPv4 and ... • https://kb.juniper.net/JSA69873 • CWE-20: Improper Input Validation CWE-1285: Improper Validation of Specified Index, Position, or Offset in Input •

CVSS: 6.5EPSS: 0%CPEs: 135EXPL: 0

20 Jul 2022 — An Improper Check for Unusual or Exceptional Conditions vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS allows an adjacent unauthenticated attacker to cause a Denial of Service (DoS). The issue is caused by malformed MLD packets looping on a multi-homed Ethernet Segment Identifier (ESI) when VXLAN is configured. These MLD packets received on a multi-homed ESI are sent to the peer, and then incorrectly forwarded out the same ESI, violating the split horizon rule. This issue o... • https://kb.juniper.net/JSA69721 • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVSS: 4.3EPSS: 0%CPEs: 319EXPL: 0

20 Jul 2022 — An Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the PFE of Juniper Networks Junos OS on PTX Series and QFX10k Series allows an adjacent unauthenticated attacker to gain access to sensitive information. PTX1000 and PTX10000 Series, and QFX10000 Series and PTX5000 Series devices sometimes do not reliably pad Ethernet packets, and thus some packets can contain fragments of system memory or data from previous packets. This issue is also known as 'Etherleak' and often detected as C... • https://kb.juniper.net/JSA69720 • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •