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    2 vulnerabilities found for aiodns by aio-libs

    CVE-2025-48945 (GCVE-0-2025-48945)

    Vulnerability from nvd – Published: 2025-06-20 19:14 – Updated: 2025-06-20 20:06
    VLAI
    Title
    pycares has a Use-After-Free Vulnerability
    Summary
    pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS queries are still pending. This results in a fatal Python error and interpreter crash. The vulnerability has been fixed in pycares 4.9.0 by implementing a safe channel destruction mechanism.
    Severity
    8.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    aio-libs aiodns Affected: < 4.9.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2025-48945 (GCVE-0-2025-48945)

    Vulnerability from cvelistv5 – Published: 2025-06-20 19:14 – Updated: 2025-06-20 20:06
    VLAI
    Title
    pycares has a Use-After-Free Vulnerability
    Summary
    pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS queries are still pending. This results in a fatal Python error and interpreter crash. The vulnerability has been fixed in pycares 4.9.0 by implementing a safe channel destruction mechanism.
    Severity
    8.2 (High)
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    aio-libs aiodns Affected: < 4.9.0
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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