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GHSA-gmc6-fwg3-75m5 — Vulnerability in MimeKit — Advisory Details

HIGH

Mimekit has vulnerable dependency that can lead to denial of service

Published July 11, 2024Updated November 29, 2024Source: osv

Summary

### Summary Denial of service vulnerability. ### Details See: https://github.com/advisories/GHSA-447r-wph3-92pm and https://github.com/dotnet/announcements/issues/312 ### PoC Update System.Security.Cryptography.Pkcs to 8.0.1 so that the transitive dependency with the issue gets updated ### Impact Denial of service vulnerability. Affects MimeKit (>= v3.0.0 and <= v4.7.0) when used to decrypt or verify incoming S/MIME messages as well as importing 3rd-party X.509 certificates for use with encrypting outgoing S/MIME messages.

Advisory Timeline

  • First published July 11, 2024 (823 days ago).
  • Last revised November 29, 2024 — 140 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update MimeKit to 4.7.1 or later
dotnet add package MimeKit --version 4.7.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
MimeKit
nuget
3.0.0, 3.1.0, 3.1.1, 3.2.0 (+16 more)4.7.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

  • CWE-20
    Improper Input ValidationMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 7.5 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

References

Frequently Asked Questions

What is GHSA-gmc6-fwg3-75m5?
Mimekit has vulnerable dependency that can lead to denial of service This vulnerability has been assigned a severity rating of HIGH (CVSS score: 7.5/10).
How do I check if my project is affected by GHSA-gmc6-fwg3-75m5?
GHSA-gmc6-fwg3-75m5 affects MimeKit. Use GeekWala's free vulnerability scanner to check your dependencies against GHSA-gmc6-fwg3-75m5 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
7.5

High exploitability or significant impact. Prioritize remediation within days.

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