Improper Data Handling Affecting python27-tkinter package, versions <0:2.7.8-14.el7


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.88% (79th percentile)

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  • Snyk IDSNYK-RHEL7-PYTHON27TKINTER-4689030
  • published26 Jul 2021
  • disclosed12 Aug 2013

Introduced: 12 Aug 2013

CVE-2013-7440  (opens in a new tab)
CWE-19  (opens in a new tab)

How to fix?

Upgrade RHEL:7 python27-tkinter to version 0:2.7.8-14.el7 or higher.
This issue was patched in RHSA-2016:1166.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python27-tkinter package and not the python27-tkinter package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

The ssl.match_hostname function in CPython (aka Python) before 2.7.9 and 3.x before 3.3.3 does not properly handle wildcards in hostnames, which might allow man-in-the-middle attackers to spoof servers via a crafted certificate.

CVSS Base Scores

version 3.1