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CVE-2021-31819 — Remote Code Execution in Halibut — CVE Details

CRITICAL

Remote Code Execution in Halibut

Published September 23, 2021Updated November 8, 2023Source: osv

Summary

In Halibut versions prior to 4.4.7 there is a deserialisation vulnerability that could allow remote code execution on systems that already trust each other based on certificate verification.

Advisory Timeline

  • First published September 23, 2021 (1845 days ago).
  • Last revised November 8, 2023 — 775 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

NuGet
Update Halibut to 4.4.7 or later
dotnet add package Halibut --version 4.4.7

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

Affected Packages (1)

Affects 1 ecosystem: nuget (1).

PackageEcosystemAffectedFixed In
Halibut
nuget
1.0.1.10, 1.0.1.11, 1.0.1.12, 1.0.1.13 (+117 more)4.4.7

Vulnerability Classification

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

  • CWE-502
    Deserialization of Untrusted DataMITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

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

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

References

Frequently Asked Questions

What is CVE-2021-31819?
Remote Code Execution in Halibut This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2021-31819?
CVE-2021-31819 affects Halibut. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2021-31819 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-hpf7-4c2g-9chf

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