nltk is vulnerable to Inefficient Regular Expression Complexity

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - nltk is vulnerable to Inefficient Regular Expression Complexity (CVE-2021-3828)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - nltk is vulnerable to Inefficient Regular Expression Complexity (CVE-2021-3828)

The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM host has packages installed that are affected by a vulnerability as referenced in the USN-5215-1 advisory.

    Srikantha Prathi discovered that NLTK incorrectly handled specially crafted input. An attacker could use     this vulnerability to cause a denial of service.

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
223986	Linux Distros Unpatched Vulnerability : CVE-2021-3828	Nessus	Misc.	high
409144	SCA: security update for nltk (GHSA-2ww3-fxvq-293j)	Tenable Cloud Security	SCA Checks	high
409144	SCA: security update for nltk (GHSA-2ww3-fxvq-293j)	Tenable Self-Hosted Container Security	SCA Checks	high
183172	Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : NLTK vulnerability (USN-5215-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2021-3828

high

Tenable Plugins

high

high

high

high