CVE-2021-3842 — HIGH (7.5) — White Hats Nepal

Q: What is CVE-2021-3842?

CVE-2021-3842 is a vulnerability with a CVSS score of 7.5 (HIGH). nltk is vulnerable to Inefficient Regular Expression Complexity

Q: How severe is CVE-2021-3842?

CVE-2021-3842 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2021-3842?

Check the references section above for vendor advisories and patch information. Affected products include: Nltk Nltk, Debian Debian Linux, Fedoraproject Fedora.

Vulnerability Description

nltk is vulnerable to Inefficient Regular Expression Complexity

CVSS Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Nltk	Nltk	< 3.6.6
Debian	Debian Linux	9.0
Fedoraproject	Fedora	35

Related Weaknesses (CWE)

CWE-1333

References

https://github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4dPatchThird Party Advisory
https://huntr.dev/bounties/761a761e-2be2-430a-8d92-6f74ffe9866aExploitIssue TrackingPatch
https://github.com/nltk/nltk/commit/2a50a3edc9d35f57ae42a921c621edc160877f4dPatchThird Party Advisory
https://huntr.dev/bounties/761a761e-2be2-430a-8d92-6f74ffe9866aExploitIssue TrackingPatch

FAQ

What is CVE-2021-3842?

CVE-2021-3842 is a vulnerability with a CVSS score of 7.5 (HIGH). nltk is vulnerable to Inefficient Regular Expression Complexity

How severe is CVE-2021-3842?

CVE-2021-3842 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-3842?

Check the references section above for vendor advisories and patch information. Affected products include: Nltk Nltk, Debian Debian Linux, Fedoraproject Fedora.