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CVE-2023-47163

Good to know:

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Date: November 12, 2023

Remarshal prior to v0.17.1 expands YAML alias nodes unlimitedly, hence Remarshal is vulnerable to Billion Laughs Attack. Processing untrusted YAML files may cause a denial-of-service (DoS) condition.

Language: Python

Severity Score

Related Resources (8)

https://github.com/remarshal-project/remarshal
https://github.com/pypa/advisory-database/tree/main/vulns/remarshal/PYSEC-2023-236.yaml
https://jvn.jp/en/jp/JVN86156389/
https://github.com/remarshal-project/remarshal/commit/fd6ac799a02f533c3fc243b49cdd6d21aa7ee494
https://github.com/remarshal-project/remarshal/releases/tag/v0.17.1
https://nvd.nist.gov/vuln/detail/CVE-2023-47163
https://jvn.jp/en/jp/JVN86156389
https://www.mend.io/vulnerability-database/CVE-2023-47163

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption

CWE-400

Uncontrolled Recursion

CWE-674

Top Fix

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Upgrade to version remarshal - 0.17.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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