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    CVE-2022-43552

    A use after free vulnerability exists in curl <7.87.0. Curl can be asked to *tunnel* virtually all protocols it supports through an HTTP proxy. HTTP proxies can (and often do) deny such tunnel operations. When getting denied to tunnel the specific protocols SMB or TELNET, curl would use a heap-allocated struct after it had been freed, in its transfer shutdown code path.

    Published:Dec 21, 2022
    Last Modified:Nov 21, 2024
    EPS:Feb 9, 2023
    EPSS Score:0.00102
    CVSS Score:5.9

    Affected Products

    Vendor
    Apple
    Product
    Macos
    Vendor
    Haxx
    Product
    Curl
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Jboss Core Services
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Splunk
    Product
    Universal Forwarder

    Exploits

    https://hackerone.com/reports/1764858https://hackerone.com/reports/1764858

    Common Weakness Enumeration

    CWE-416 Use After Free

    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