CVE Vulnerability

CVE-2021-32742

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:)`.

6.4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 4.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

Scope

9.1 /10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/vapor/vapor/security/advisories/GHSA-pqwh-c2f3-vxmq Third Party Advisory
https://github.com/vapor/vapor/releases/tag/4.47.2 Release Notes Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:vapor_project:vapor:*:*:*:*:*:swift:*:*
Information

Published : 2021-07-09 02:15

Updated : 2021-07-22 12:54

NVD link : CVE-2021-32742

Mitre link : CVE-2021-32742

Products Affected
No products.
CWE
CWE-502

Deserialization of Untrusted Data