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    4 vulnerabilities found for swiftnio_ssl by apple

    CVE-2026-43820 (GCVE-0-2026-43820)

    Vulnerability from nvd – Published: 2026-07-23 14:33 – Updated: 2026-07-24 20:09
    VLAI
    Summary
    NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1_STRING, but not all SANs are backed by ASN1_STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access. This vulnerability is addressed in swift-nio-ssl version 2.37.2.
    Severity
    7.7 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-24 20:09 UTC
    CWE
    • NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1_STRING, but not all SANs are backed by ASN1_STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access.
    • CWE-125 - Out-of-bounds Read
    Assigner
    References
    Impacted products
    Vendor Product Version
    Apple swift-nio-ssl Affected: 0 , < 2.37.2 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2019-8849 (GCVE-0-2019-8849)

    Vulnerability from nvd – Published: 2019-12-18 17:33 – Updated: 2024-08-04 21:31
    VLAI
    Summary
    The issue was addressed by signaling that an executable stack is not required. This issue is fixed in SwiftNIO SSL 2.4.1. A SwiftNIO application using TLS may be able to execute arbitrary code.
    Severity
    No CVSS data available.
    CWE
    • A SwiftNIO application using TLS may be able to execute arbitrary code
    Assigner
    References
    URL Tags
    https://support.apple.com/HT210772 x_refsource_MISC
    Impacted products
    Vendor Product Version
    Apple Swift-Ubuntu Affected: unspecified , < SwiftNIO SSL 2.4.1 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2026-43820 (GCVE-0-2026-43820)

    Vulnerability from cvelistv5 – Published: 2026-07-23 14:33 – Updated: 2026-07-24 20:09
    VLAI
    Summary
    NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1_STRING, but not all SANs are backed by ASN1_STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access. This vulnerability is addressed in swift-nio-ssl version 2.37.2.
    Severity
    7.7 (High)
    CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-24 20:09 UTC
    CWE
    • NIOSSLCertificate._subjectAlternativeNames provides access to the raw bytes for a cert's SANs. NIOSSL provides access to a buffer assumed to be backed by an ASN1_STRING, but not all SANs are backed by ASN1_STRING, so accessing the buffer for such a type can lead to out-of-bounds memory access.
    • CWE-125 - Out-of-bounds Read
    Assigner
    References
    Impacted products
    Vendor Product Version
    Apple swift-nio-ssl Affected: 0 , < 2.37.2 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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    CVE-2019-8849 (GCVE-0-2019-8849)

    Vulnerability from cvelistv5 – Published: 2019-12-18 17:33 – Updated: 2024-08-04 21:31
    VLAI
    Summary
    The issue was addressed by signaling that an executable stack is not required. This issue is fixed in SwiftNIO SSL 2.4.1. A SwiftNIO application using TLS may be able to execute arbitrary code.
    Severity
    No CVSS data available.
    CWE
    • A SwiftNIO application using TLS may be able to execute arbitrary code
    Assigner
    References
    URL Tags
    https://support.apple.com/HT210772 x_refsource_MISC
    Impacted products
    Vendor Product Version
    Apple Swift-Ubuntu Affected: unspecified , < SwiftNIO SSL 2.4.1 (custom)
    		Create a notification for this product.
    Show details on NVD website
    To clipboard 

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