Inefficient Regular Expression Complexity Affecting python3-pymongo-gridfs package, versions <0:3.7.0-1.module+el8.4.0+20103+1849b5f9


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.56% (78th percentile)

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  • Snyk IDSNYK-ORACLE8-PYTHON3PYMONGOGRIDFS-2588181
  • published10 Apr 2022
  • disclosed17 Mar 2021

Introduced: 17 Mar 2021

CVE-2021-27291  (opens in a new tab)
CWE-1333  (opens in a new tab)

How to fix?

Upgrade Oracle:8 python3-pymongo-gridfs to version 0:3.7.0-1.module+el8.4.0+20103+1849b5f9 or higher.
This issue was patched in ELSA-2021-4150.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-pymongo-gridfs package and not the python3-pymongo-gridfs package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

In pygments 1.1+, fixed in 2.7.4, the lexers used to parse programming languages rely heavily on regular expressions. Some of the regular expressions have exponential or cubic worst-case complexity and are vulnerable to ReDoS. By crafting malicious input, an attacker can cause a denial of service.

CVSS Scores

version 3.1