Advisory Published
Updated

CVE-2019-8849

First published: Wed Dec 18 2019(Updated: )

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.

Credit: product-security@apple.com

Affected SoftwareAffected VersionHow to fix
SwiftNIO<2.4.1

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Frequently Asked Questions

  • What is the severity of CVE-2019-8849?

    CVE-2019-8849 is classified as a high severity vulnerability due to its potential to allow arbitrary code execution.

  • How do I fix CVE-2019-8849?

    To fix CVE-2019-8849, upgrade to SwiftNIO SSL version 2.4.1 or later.

  • What types of applications are affected by CVE-2019-8849?

    CVE-2019-8849 affects SwiftNIO applications that use TLS.

  • What can an attacker achieve by exploiting CVE-2019-8849?

    Exploiting CVE-2019-8849 could allow an attacker to execute arbitrary code within a vulnerable application.

  • Is there a workaround for CVE-2019-8849 if upgrading is not possible?

    There are no known workarounds for CVE-2019-8849, so upgrading is strongly recommended.

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