Summaryinfo

A vulnerability has been found in SwiftNIO SSL 2.4.1 and classified as critical. Affected by this issue is some unknown functionality of the component TLS Handler. Performing a manipulation results in stack-based overflow. This vulnerability was named CVE-2019-8849. The attack may be initiated remotely. There is no available exploit. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability, which was classified as critical, was found in SwiftNIO SSL 2.4.1. This affects an unknown part of the component TLS Handler. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The weakness was presented 12/18/2019. This vulnerability is uniquely identified as CVE-2019-8849 since 02/18/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• SwiftNIO

Name

• SSL

Version

• 2.4.1

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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