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
40.4%
A Buffer Overflow vulnerability in the PFE of Juniper Networks Junos OS on SRX series allows an unauthenticated network based attacker to cause a Denial of Service (DoS). The PFE will crash when specific traffic is scanned by Enhanced Web Filtering safe-search feature of UTM (Unified Threat management). Continued receipt of this specific traffic will create a sustained Denial of Service (DoS) condition. This issue affects Juniper Networks Junos OS: 20.2 versions prior to 20.2R3-S4 on SRX Series; 20.3 versions prior to 20.3R3-S3 on SRX Series; 20.4 versions prior to 20.4R3-S3 on SRX Series; 21.1 versions prior to 21.1R3-S1 on SRX Series; 21.2 versions prior to 21.2R2-S2, 21.2R3 on SRX Series; 21.3 versions prior to 21.3R2 on SRX Series; 21.4 versions prior to 21.4R2 on SRX Series. This issue does not affect Juniper Networks Junos OS versions prior to 20.2R1.
[
{
"platforms": [
"SRX Series"
],
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.2R3-S4",
"status": "affected",
"version": "20.2",
"versionType": "custom"
},
{
"lessThan": "20.3R3-S3",
"status": "affected",
"version": "20.3",
"versionType": "custom"
},
{
"lessThan": "20.4R3-S3",
"status": "affected",
"version": "20.4",
"versionType": "custom"
},
{
"lessThan": "21.1R3-S1",
"status": "affected",
"version": "21.1",
"versionType": "custom"
},
{
"lessThan": "21.2R2-S2, 21.2R3",
"status": "affected",
"version": "21.2",
"versionType": "custom"
},
{
"lessThan": "21.3R2",
"status": "affected",
"version": "21.3",
"versionType": "custom"
},
{
"lessThan": "21.4R2",
"status": "affected",
"version": "21.4",
"versionType": "custom"
}
]
},
{
"product": "Junos OS",
"vendor": "Juniper Networks",
"versions": [
{
"lessThan": "20.2R1",
"status": "unaffected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]