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    CVE-2023-36831

    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. The jbuf memory leak only occurs in SSL Proxy and UTM Web-Filtering configurations. Other products, platforms, and configurations are not affected by this vulnerability. This issue affects Juniper Networks Junos OS on SRX Series: 22.2 versions prior to 22.2R3; 22.3 versions prior to 22.3R2-S1, 22.3R3; 22.4 versions prior to 22.4R1-S2, 22.4R2. This issue does not affect Juniper Networks Junos OS versions prior to 22.2R2.

    Published:Jul 14, 2023
    Last Modified:Nov 21, 2024
    EPS:Jul 14, 2023
    EPSS Score:0.00186
    CVSS Score:7.5

    Affected Products

    Vendor
    Juniper
    Product
    Csrx
    Vendor
    Juniper
    Product
    Junos
    Vendor
    Juniper
    Product
    Srx100
    Vendor
    Juniper
    Product
    Srx110
    Vendor
    Juniper
    Product
    Srx1400
    Vendor
    Juniper
    Product
    Srx1500
    Vendor
    Juniper
    Product
    Srx210
    Vendor
    Juniper
    Product
    Srx220
    Vendor
    Juniper
    Product
    Srx240
    Vendor
    Juniper
    Product
    Srx240h2
    Vendor
    Juniper
    Product
    Srx240m
    Vendor
    Juniper
    Product
    Srx300
    Vendor
    Juniper
    Product
    Srx320
    Vendor
    Juniper
    Product
    Srx340
    Vendor
    Juniper
    Product
    Srx3400
    Vendor
    Juniper
    Product
    Srx345
    Vendor
    Juniper
    Product
    Srx3600
    Vendor
    Juniper
    Product
    Srx380
    Vendor
    Juniper
    Product
    Srx4000
    Vendor
    Juniper
    Product
    Srx4100
    Vendor
    Juniper
    Product
    Srx4200
    Vendor
    Juniper
    Product
    Srx4600
    Vendor
    Juniper
    Product
    Srx5000
    Vendor
    Juniper
    Product
    Srx5400
    Vendor
    Juniper
    Product
    Srx550
    Vendor
    Juniper
    Product
    Srx550 Hm
    Vendor
    Juniper
    Product
    Srx550m
    Vendor
    Juniper
    Product
    Srx5600
    Vendor
    Juniper
    Product
    Srx5800
    Vendor
    Juniper
    Product
    Srx650
    Vendor
    Juniper
    Product
    Vsrx
    Vendor
    Juniper Networks
    Product
    Junos Os

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High