Improper Initialization Affecting tkinter package, versions <0:2.7.5-83.el7_6


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.52% (77th percentile)

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  • Snyk IDSNYK-RHEL7-TKINTER-4907803
  • published26 Jul 2021
  • disclosed22 Sept 2018

Introduced: 22 Sep 2018

CVE-2018-14647  (opens in a new tab)
CWE-665  (opens in a new tab)
CWE-335  (opens in a new tab)

How to fix?

Upgrade RHEL:7 tkinter to version 0:2.7.5-83.el7_6 or higher.
This issue was patched in RHSA-2020:1462.

NVD Description

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

Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. The vulnerability exists in Python versions 3.7.0, 3.6.0 through 3.6.6, 3.5.0 through 3.5.6, 3.4.0 through 3.4.9, 2.7.0 through 2.7.15.

CVSS Scores

version 3.1