CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
19.8%
A NULL Pointer Dereference vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on QFX5000 Series and MX Series allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). On QFX5K Series and MX Series, when the PFE receives a specific VxLAN packet the Layer 2 Address Learning Manager (L2ALM) process will crash leading to an FPC reboot. Continued receipt of this specific packet will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS on QFX5000 Series, MX Series: 20.3 versions prior to 20.3R3-S3; 20.4 versions prior to 20.4R3-S2; 21.2 versions prior to 21.2R2-S1. This issue does not affect Juniper Networks Junos OS: All versions prior to 20.3R1; 21.1 version 21.1R1 and later versions.
Vendor | Product | Version | CPE |
---|---|---|---|
juniper | junos | 20.3 | cpe:2.3:o:juniper:junos:20.3:-:*:*:*:*:*:* |
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 | 20.4 | cpe:2.3:o:juniper:junos:20.4:-:*:*:*:*:*:* |
[
{
"platforms": [
"QFX5000 Series, MX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.3R3-S3",
"status": "affected",
"version": "20.3",
"versionType": "custom"
},
{
"lessThan": "20.4R3-S2",
"status": "affected",
"version": "20.4",
"versionType": "custom"
},
{
"lessThan": "21.2R2-S1",
"status": "affected",
"version": "21.2",
"versionType": "custom"
}
]
},
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.3R1",
"status": "unaffected",
"version": "unspecified",
"versionType": "custom"
},
{
"lessThan": "21.1*",
"status": "unaffected",
"version": "21.1R1",
"versionType": "custom"
}
]
}
]