CVE-2021-32742 Information

Description

Vapor is a web framework for Swift. In versions 4.47.1 and prior bug in the Data.init(base32Encoded:) function opens up the potential for exposing server memory and/or crashing the server (Denial of Service) for applications where untrusted data can end up in said function. Vapor does not currently use this function itself so this only impact applications that use the impacted function directly or through other dependencies. The vulnerability is patched in version 4.47.2. As a workaround one may use an alternative to Vapor’s built-in Data.init(base32Encoded:).

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Reference

https://github.com/vapor/vapor/security/advisories/GHSA-pqwh-c2f3-vxmq https://github.com/vapor/vapor/releases/tag/4.47.2

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

9.1