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High USN-5215-1 1 CVE

nltk vulnerability

Published Jan 10, 2022 · Updated Jun 25, 2026

Summary

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

Fixed packages 3

ReleasePackageFixed in
Ubuntu · Pro 16.04 LTS Pro:16.04:LTS nltk 3.1-1ubuntu0.1+esm1
Ubuntu · Pro 18.04 LTS Pro:18.04:LTS nltk 3.2.5-1ubuntu0.1+esm1
Ubuntu · Pro 20.04 LTS Pro:20.04:LTS nltk 3.4.5-2ubuntu0.1~esm1

Vulnerabilities 1

References

  • report
    https://ubuntu.com/security/CVE-2021-3828