{
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2023-36831",
"ASSIGNER": "sirt@juniper.net",
"STATE": "PUBLIC"
},
"description": {
"description_data": [
{
"lang": "eng",
"value": "An Improper Check or Handling of Exceptional Conditions vulnerability in the UTM (Unified Threat Management) Web-Filtering feature of Juniper Networks Junos OS on SRX Series causes a jbuf memory leak to occur when accessing certain websites, eventually leading to a Denial of Service (DoS) condition. Service restoration is only possible by rebooting the system.\n\nThe jbuf memory leak only occurs in SSL Proxy and UTM Web-Filtering configurations. Other products, platforms, and configurations are not affected by this vulnerability.\n\nThis issue affects Juniper Networks Junos OS on SRX Series:\n22.2 versions prior to 22.2R3;\n22.3 versions prior to 22.3R2-S1, 22.3R3;\n22.4 versions prior to 22.4R1-S2, 22.4R2.\n\nThis issue does not affect Juniper Networks Junos OS versions prior to 22.2R2.\n"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-703 Improper Check or Handling of Exceptional Conditions",
"cweId": "CWE-703"
}
]
},
{
"description": [
{
"lang": "eng",
"value": "Denial of Service (DoS)"
}
]
}
]
},
"affects": {
"vendor": {
"vendor_data": [
{
"vendor_name": "Juniper Networks",
"product": {
"product_data": [
{
"product_name": "Junos OS",
"version": {
"version_data": [
{
"version_value": "not down converted",
"x_cve_json_5_version_data": {
"versions": [
{
"lessThan": "22.2R3",
"status": "affected",
"version": "22.2",
"versionType": "custom"
},
{
"lessThan": "22.3R2-S1, 22.3R3",
"status": "affected",
"version": "22.3",
"versionType": "custom"
},
{
"lessThan": "22.4R1-S2, 22.4R2",
"status": "affected",
"version": "22.4",
"versionType": "custom"
},
{
"lessThan": "22.2R2",
"status": "unaffected",
"version": "unspecified",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
}
}
]
}
}
]
}
}
]
}
},
"references": {
"reference_data": [
{
"url": "https://supportportal.juniper.net/JSA71636",
"refsource": "MISC",
"name": "https://supportportal.juniper.net/JSA71636"
}
]
},
"generator": {
"engine": "Vulnogram 0.1.0-dev"
},
"source": {
"defect": [
"1709031"
],
"discovery": "USER"
},
"configuration": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The following sample configuration options highlight the features required to be affected by this issue:
set services ssl proxy profile SSL-PROXY protocol-version tls12-and-lower
set services ssl proxy profile SSL-PROXY trusted-ca all
set services ssl proxy profile SSL-PROXY root-ca ssl-proxy-ecdsa1
set security pki ca-profile SECURITY-CA-GROUP_1 ca-identity SECURITY-CA-GROUP_1
...
set security utm default-configuration web-filtering juniper-enhanced default log-and-permit
set security utm feature-profile web-filtering juniper-enhanced profile 2 category ... action block
...
set security utm utm-policy 1 web-filtering http-profile 2
...
set security policies from-zone private to-zone internet policy 1 then permit application-services ssl-proxy profile-name SSL-PROXY
set security policies from-zone private to-zone internet policy 1 then permit application-services utm-policy 1
"
}
],
"value": "The following sample configuration options highlight the features required to be affected by this issue:\n\u00a0 set services ssl proxy profile SSL-PROXY protocol-version tls12-and-lower\n\u00a0 set services ssl proxy profile SSL-PROXY trusted-ca all\n\u00a0 set services ssl proxy profile SSL-PROXY root-ca ssl-proxy-ecdsa1\n\u00a0 set security pki ca-profile SECURITY-CA-GROUP_1 ca-identity SECURITY-CA-GROUP_1\n...\n\u00a0 set security utm default-configuration web-filtering juniper-enhanced default log-and-permit\n\u00a0 set security utm feature-profile web-filtering juniper-enhanced profile 2 category ... action block\n...\n\u00a0 set security utm utm-policy 1 web-filtering http-profile 2\n...\n\u00a0 set security policies from-zone private to-zone internet policy 1 then permit application-services ssl-proxy profile-name SSL-PROXY\n\u00a0 set security policies from-zone private to-zone internet policy 1 then permit application-services utm-policy 1\n"
}
],
"work_around": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "There are no known workarounds for this issue.
"
}
],
"value": "There are no known workarounds for this issue.\n"
}
],
"exploit": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.
"
}
],
"value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability.\n"
}
],
"solution": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "The following software releases have been updated to resolve this specific issue: Junos OS 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1, and all subsequent releases.
"
}
],
"value": "The following software releases have been updated to resolve this specific issue: Junos OS 22.2R3, 22.3R2-S1, 22.3R3, 22.4R1-S2, 22.4R2, 23.1R1, and all subsequent releases.\n"
}
],
"impact": {
"cvss": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
}
]
}
}