Loop with Unreachable Exit Condition ('Infinite Loop') Affecting python3-tk package, versions <3.6.12-3.67.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.53% (78th percentile)

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  • Snyk IDSNYK-SLES151-PYTHON3TK-2694376
  • published14 Apr 2022
  • disclosed23 Dec 2020

Introduced: 23 Dec 2020

CVE-2019-20907  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade SLES:15.1 python3-tk to version 3.6.12-3.67.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-tk package and not the python3-tk package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.

References

CVSS Scores

version 3.1