NLTK Vulnerable to REDoS
The nltk package is vulnerable to ReDoS (regular expression denial of service). An attacker that is able to provide as an input to the [`_read_comparison_block()`(https://github.com/nltk/nltk/blob/23f4b1c4b4006b0cb3ec278e801029557cec4e82/nltk/corpus/reader/comparative_sents.py#L259) function in the file `nltk/corpus/reader/comparative_sents.py` may cause an application to consume an excessive amount of CPU.
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beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2021-3828US | high7.5 | — | ||
nltk is vulnerable to Inefficient Regular Expression Complexity | ||||
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Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/advisories/GHSA-2ww3-fxvq-293jADVISORY
- https://github.com/nltk/nltkPACKAGE
- https://github.com/nltk/nltk/commit/277711ab1dec729e626b27aab6fa35ea5efbd7e6WEB
- https://github.com/nltk/nltk/pull/2816WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2021-356.yamlWEB
- https://huntr.dev/bounties/d19aed43-75bc-4a03-91a0-4d0bb516bc32WEB
- https://nvd.nist.gov/vuln/detail/CVE-2021-3828ADVISORY
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