CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
33.9%
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.
This issue affects Juniper Networks Junos OS on QFX10000:
20.3 version 20.3R1 and later versions;
20.4 versions prior to 20.4R3-S5;
21.1 versions prior to 21.1R3-S5;
21.2 versions prior to 21.2R3-S5;
21.3 versions prior to 21.3R3-S4;
21.4 versions prior to 21.4R3-S1;
22.1 versions prior to 22.1R3;
22.2 versions prior to 22.2R2;
22.3 versions prior to 22.3R1-S2, 22.3R2.
Vendor | Product | Version | CPE |
---|---|---|---|
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r1-s2:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r2:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r2-s1:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r3:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r3-s1:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r3-s2:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r3-s3:*:*:*:*:*:* |
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:r3-s4:*:*:*:*:*:* |