Unrestricted Upload of File with Dangerous Type Affecting pure-ftpd package, versions *


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.27% (69th percentile)

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  • Snyk ID SNYK-DEBIAN9-PUREFTPD-1582798
  • published 6 Sep 2021
  • disclosed 5 Sep 2021

How to fix?

There is no fixed version for Debian:9 pure-ftpd.

NVD Description

Note: Versions mentioned in the description apply only to the upstream pure-ftpd package and not the pure-ftpd package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

In Pure-FTPd before 1.0.50, an incorrect max_filesize quota mechanism in the server allows attackers to upload files of unbounded size, which may lead to denial of service or a server hang. This occurs because a certain greater-than-zero test does not anticipate an initial -1 value. (Versions 1.0.23 through 1.0.49 are affected.)

CVSS Scores

version 3.1
Expand this section

NVD

7.5 high
  • 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