2023-12-06 19:00:31 +00:00
{
2023-12-14 19:00:35 +00:00
"data_version" : "4.0" ,
2023-12-06 19:00:31 +00:00
"data_type" : "CVE" ,
"data_format" : "MITRE" ,
"CVE_data_meta" : {
"ID" : "CVE-2023-6563" ,
2023-12-14 19:00:35 +00:00
"ASSIGNER" : "secalert@redhat.com" ,
"STATE" : "PUBLIC"
2023-12-06 19:00:31 +00:00
} ,
"description" : {
"description_data" : [
{
"lang" : "eng" ,
2023-12-14 19:00:35 +00:00
"value" : "An unconstrained memory consumption vulnerability was discovered in Keycloak. It can be triggered in environments which have millions of offline tokens (> 500,000 users with each having at least 2 saved sessions). If an attacker creates two or more user sessions and then open the \"consents\" tab of the admin User Interface, the UI attempts to load a huge number of offline client sessions leading to excessive memory and CPU consumption which could potentially crash the entire system."
}
]
} ,
"problemtype" : {
"problemtype_data" : [
{
"description" : [
{
"lang" : "eng" ,
"value" : "Allocation of Resources Without Limits or Throttling" ,
"cweId" : "CWE-770"
}
]
}
]
} ,
"affects" : {
"vendor" : {
"vendor_data" : [
{
"vendor_name" : "n/a" ,
"product" : {
"product_data" : [
{
"product_name" : "keycloak" ,
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"versions" : [
{
"version" : "21.0.0" ,
"status" : "unaffected"
}
]
}
}
]
}
}
]
}
} ,
{
"vendor_name" : "Red Hat" ,
"product" : {
"product_data" : [
{
2023-12-14 22:00:33 +00:00
"product_name" : "Red Hat Single Sign-On 7.6 for RHEL 7" ,
2023-12-14 19:00:35 +00:00
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
2023-12-14 22:00:33 +00:00
"versions" : [
{
"version" : "0:18.0.11-2.redhat_00003.1.el7sso" ,
"lessThan" : "*" ,
"versionType" : "rpm" ,
"status" : "unaffected"
}
] ,
"defaultStatus" : "affected"
}
}
]
}
} ,
{
"product_name" : "Red Hat Single Sign-On 7.6 for RHEL 8" ,
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"versions" : [
{
"version" : "0:18.0.11-2.redhat_00003.1.el8sso" ,
"lessThan" : "*" ,
"versionType" : "rpm" ,
"status" : "unaffected"
}
] ,
"defaultStatus" : "affected"
2023-12-14 19:00:35 +00:00
}
}
]
}
} ,
{
2023-12-14 22:00:33 +00:00
"product_name" : "Red Hat Single Sign-On 7.6 for RHEL 9" ,
2023-12-14 19:00:35 +00:00
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
2023-12-14 22:00:33 +00:00
"versions" : [
{
"version" : "0:18.0.11-2.redhat_00003.1.el9sso" ,
"lessThan" : "*" ,
"versionType" : "rpm" ,
"status" : "unaffected"
}
] ,
2023-12-14 19:00:35 +00:00
"defaultStatus" : "affected"
}
}
]
}
2023-12-14 22:00:33 +00:00
} ,
{
"product_name" : "RHEL-8 based Middleware Containers" ,
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"versions" : [
{
"version" : "7.6-38" ,
"lessThan" : "*" ,
"versionType" : "rpm" ,
"status" : "unaffected"
}
] ,
"defaultStatus" : "affected"
}
} ,
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"versions" : [
{
"version" : "7.6.6-2" ,
"lessThan" : "*" ,
"versionType" : "rpm" ,
"status" : "unaffected"
}
] ,
"defaultStatus" : "affected"
}
}
]
}
} ,
{
"product_name" : "Single Sign-On 7.6.6" ,
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"defaultStatus" : "unaffected"
}
}
]
}
} ,
{
"product_name" : "Red Hat Build of Keycloak" ,
"version" : {
"version_data" : [
{
"version_value" : "not down converted" ,
"x_cve_json_5_version_data" : {
"defaultStatus" : "unknown"
}
}
]
}
2023-12-14 19:00:35 +00:00
}
]
}
}
]
}
} ,
"references" : {
"reference_data" : [
2023-12-14 22:00:33 +00:00
{
"url" : "https://access.redhat.com/errata/RHSA-2023:7854" ,
"refsource" : "MISC" ,
"name" : "https://access.redhat.com/errata/RHSA-2023:7854"
} ,
{
"url" : "https://access.redhat.com/errata/RHSA-2023:7855" ,
"refsource" : "MISC" ,
"name" : "https://access.redhat.com/errata/RHSA-2023:7855"
} ,
{
"url" : "https://access.redhat.com/errata/RHSA-2023:7856" ,
"refsource" : "MISC" ,
"name" : "https://access.redhat.com/errata/RHSA-2023:7856"
} ,
{
"url" : "https://access.redhat.com/errata/RHSA-2023:7857" ,
"refsource" : "MISC" ,
"name" : "https://access.redhat.com/errata/RHSA-2023:7857"
} ,
{
"url" : "https://access.redhat.com/errata/RHSA-2023:7858" ,
"refsource" : "MISC" ,
"name" : "https://access.redhat.com/errata/RHSA-2023:7858"
} ,
2023-12-14 19:00:35 +00:00
{
"url" : "https://access.redhat.com/security/cve/CVE-2023-6563" ,
"refsource" : "MISC" ,
"name" : "https://access.redhat.com/security/cve/CVE-2023-6563"
} ,
{
"url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2253308" ,
"refsource" : "MISC" ,
"name" : "https://bugzilla.redhat.com/show_bug.cgi?id=2253308"
} ,
{
"url" : "https://github.com/keycloak/keycloak/issues/13340" ,
"refsource" : "MISC" ,
"name" : "https://github.com/keycloak/keycloak/issues/13340"
}
]
} ,
"work_around" : [
{
"lang" : "en" ,
"value" : "There are three main options to prevent exploitation:\n1) If you are using a reverse proxy, block the consents URL.\n2) This option is less effective: remove the consents application tab from the account console theme.\n3) This option has a significant negative impact on end users: entirely disable offline user profiles."
}
] ,
"impact" : {
"cvss" : [
{
"attackComplexity" : "LOW" ,
"attackVector" : "NETWORK" ,
"availabilityImpact" : "HIGH" ,
"baseScore" : 7.7 ,
"baseSeverity" : "HIGH" ,
"confidentialityImpact" : "NONE" ,
"integrityImpact" : "NONE" ,
"privilegesRequired" : "LOW" ,
"scope" : "CHANGED" ,
"userInteraction" : "NONE" ,
"vectorString" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H" ,
"version" : "3.1"
2023-12-06 19:00:31 +00:00
}
]
}
}