Arbitrary File Overwrite Affecting fstream package, versions <1.0.12


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team

    Threat Intelligence

    EPSS
    0.24% (63rd percentile)

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  • Snyk ID SNYK-JS-FSTREAM-174725
  • published 15 May 2019
  • disclosed 15 May 2019
  • credit Max Justicz

How to fix?

Upgrade fstream to version 1.0.12 or higher.

Overview

fstream is a package that supports advanced FS Streaming for Node.

Affected versions of this package are vulnerable to Arbitrary File Overwrite. Extracting tarballs containing a hardlink to a file that already exists in the system and a file that matches the hardlink will overwrite the system's file with the contents of the extracted file.

CVSS Scores

version 3.1
Expand this section

Snyk

Recommended
7.3 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    Low