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Security Advisories: GSA_kwCzR0hTQS0zbXdxLWgzZzYtZmZobc4AA2Qq

Vapor's incorrect request error handling triggers server crash

Vapor incorrectly handles errors encountered during parsing of HTTP 1.x requests, triggering a precondition failure in swift-nio due to API misuse and causing immediate termination of the server process.

Impact

This is a denial of service vulnerability, impacting all users of affected versions of Vapor. Because the crash is an explicit assertion failure, there is no corruption of process state and no risk of data leakage or unauthorized code execution. Total impact is limited to an immediately recoverable service interruption.

Patches

The issue is fixed as of Vapor release 4.84.2.

Workarounds

None known at this time.

For more information

If you have any questions or comments about this advisory:

Acknowledgements

Full credit for reporting this issue goes to @t0rchwo0d, with additional thanks for responsibly disclosing.

Permalink: https://github.com/advisories/GHSA-3mwq-h3g6-ffhm
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS0zbXdxLWgzZzYtZmZobc4AA2Qq
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: 7 months ago
Updated: 3 months ago


CVSS Score: 5.3
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Identifiers: GHSA-3mwq-h3g6-ffhm, CVE-2023-44386
References: Repository: https://github.com/vapor/vapor
Blast Radius: 15.4

Affected Packages

swift:github.com/vapor/vapor
Dependent packages: 105
Dependent repositories: 796
Downloads:
Affected Version Ranges: >= 4.83.2, < 4.84.2
Fixed in: 4.84.2
All affected versions: 4.83.2, 4.84.0, 4.84.1
All unaffected versions: 0.1.0, 0.1.1, 0.1.2, 0.1.3, 0.1.4, 0.1.5, 0.1.6, 0.1.7, 0.1.8, 0.1.9, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 0.2.5, 0.2.6, 0.2.7, 0.2.8, 0.2.9, 0.2.10, 0.3.0, 0.3.1, 0.3.2, 0.3.3, 0.3.4, 0.3.5, 0.4.0, 0.4.1, 0.4.2, 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.6.0, 0.7.0, 0.7.1, 0.8.0, 0.8.1, 0.8.2, 0.9.0, 0.9.1, 0.9.2, 0.10.0, 0.11.0, 0.11.1, 0.12.0, 0.12.1, 0.12.2, 0.12.3, 0.13.0, 0.14.0, 0.15.0, 0.15.1, 0.15.2, 0.15.3, 0.16.0, 0.16.1, 0.16.2, 0.17.0, 0.17.1, 0.17.2, 0.18.0, 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.1.4, 1.1.5, 1.1.6, 1.1.7, 1.1.8, 1.1.9, 1.1.10, 1.1.11, 1.1.12, 1.1.13, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3.8, 1.3.9, 1.3.10, 1.3.11, 4.48.5, 4.48.6, 4.48.7, 4.48.8, 4.49.0, 4.49.1, 4.49.2, 4.50.0, 4.51.0, 4.51.1, 4.52.0, 4.52.1, 4.52.2, 4.52.3, 4.52.4, 4.52.5, 4.53.0, 4.54.0, 4.54.1, 4.54.2, 4.55.0, 4.55.1, 4.55.2, 4.55.3, 4.55.4, 4.56.0, 4.57.0, 4.57.1, 4.58.0, 4.59.0, 4.59.1, 4.60.0, 4.60.1, 4.60.2, 4.60.3, 4.61.0, 4.61.1, 4.62.0, 4.62.1, 4.62.2, 4.63.0, 4.64.0, 4.65.0, 4.65.1, 4.65.2, 4.66.0, 4.66.1, 4.67.0, 4.67.1, 4.67.2, 4.67.3, 4.67.4, 4.67.5, 4.68.0, 4.69.0, 4.69.1, 4.69.2, 4.70.0, 4.71.0, 4.71.1, 4.72.0, 4.72.1, 4.73.0, 4.74.0, 4.74.1, 4.74.2, 4.75.0, 4.75.1, 4.75.2, 4.76.0, 4.76.1, 4.76.2, 4.76.3, 4.76.4, 4.77.0, 4.77.1, 4.77.2, 4.78.0, 4.78.1, 4.78.2, 4.79.0, 4.80.0, 4.81.0, 4.81.1, 4.82.0, 4.83.0, 4.83.1, 4.84.2, 4.84.3, 4.84.4, 4.84.5, 4.84.6, 4.85.0, 4.85.1, 4.86.0, 4.86.1, 4.86.2, 4.87.0, 4.87.1, 4.88.0, 4.89.0, 4.89.1, 4.89.2, 4.89.3, 4.90.0, 4.91.0, 4.91.1, 4.92.0, 4.92.1, 4.92.2, 4.92.3, 4.92.4, 4.92.5, 4.92.6, 4.92.7, 4.92.8, 4.92.9, 4.93.0, 4.93.1, 4.93.2, 4.94.0, 4.94.1