Packages
- nltk - Natural Language Toolkit
Details
It was discovered that NLTK contained a regex that is susceptible to
catastrophic backtracking. An attacker could possibly use this issue to
cause a denial of service. (CVE-2021-3842, CVE-2021-43854)
It was discovered that NLTK contained a regex that is susceptible to
catastrophic backtracking. An attacker could possibly use this issue to
cause a denial of service. (CVE-2021-3842, CVE-2021-43854)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 20.04 focal | python3-nltk – 3.4.5-2ubuntu0.1~esm2 | ||
| 18.04 bionic | python-nltk – 3.2.5-1ubuntu0.1+esm2 | ||
| python3-nltk – 3.2.5-1ubuntu0.1+esm2 | |||
| 16.04 xenial | python-nltk – 3.1-1ubuntu0.1+esm2 | ||
| python3-nltk – 3.1-1ubuntu0.1+esm2 | |||
| 14.04 trusty | python-nltk – 2.0~b9-0ubuntu4.1~esm4 | ||
Reduce your security exposure
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