Unchecked Return Value Affecting python-tk package, versions <2.7.18-150000.38.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating

    Threat Intelligence

    EPSS
    0.18% (56th percentile)

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  • Snyk ID SNYK-SLES152-PYTHONTK-2637229
  • published 14 Apr 2022
  • disclosed 1 Apr 2022

How to fix?

Upgrade SLES:15.2 python-tk to version 2.7.18-150000.38.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python-tk package and not the python-tk package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw was found in Python, specifically in the FTP (File Transfer Protocol) client library in PASV (passive) mode. The issue is how the FTP client trusts the host from the PASV response by default. This flaw allows an attacker to set up a malicious FTP server that can trick FTP clients into connecting back to a given IP address and port. This vulnerability could lead to FTP client scanning ports, which otherwise would not have been possible.

CVSS Scores

version 3.1
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NVD

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

5.3 medium
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Red Hat

5.3 medium