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githubGitHub Advisory DatabaseGHSA-2WW3-FXVQ-293J
HistorySep 29, 2021 - 5:14 p.m.

NLTK Vulnerable to REDoS

2021-09-2917:14:53
CWE-697
CWE-1333
GitHub Advisory Database
github.com
17

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

45.8%

JSON

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() function in the file nltk/corpus/reader/comparative_sents.py may cause an application to consume an excessive amount of CPU.

Affected configurations

Vulners
Node
nltknltkRange<3.6.4
CPENameOperatorVersion
nltklt3.6.4

Related

cve 1
ubuntu 1
mageia 1
openvas 2
veracode 1
osv 4
nvd 1
ubuntucve 1
prion 1
debiancve 1
huntr 1
nessus 1
cvelist 1
suse 1
cve
cve
CVE-2021-3828
2021-09-27 13:15:07
ubuntu
ubuntu
NLTK vulnerability
2022-01-10 00:00:00
mageia
mageia
Updated python-nltk package fixes a security vulnerability
2023-10-25 21:17:50
openvas
openvas
Mageia: Security Advisory (MGASA-2023-0302)
2023-10-26 00:00:00
Ubuntu: Security Advisory (USN-5215-1)
2023-01-27 00:00:00
veracode
veracode
Regular Expression Denial Of Service (ReDoS)
2021-09-28 05:53:42
osv
osv
PYSEC-2021-356
2021-09-27 13:15:00
NLTK Vulnerable to REDoS
2021-09-29 17:14:53
CVE-2021-3828
2021-09-27 13:15:07
nvd
nvd
CVE-2021-3828
2021-09-27 13:15:07
ubuntucve
ubuntucve
CVE-2021-3828
2021-09-27 00:00:00
prion
prion
Design/Logic Flaw
2021-09-27 13:15:00
debiancve
debiancve
CVE-2021-3828
2021-09-27 13:15:07
huntr
huntr
Inefficient Regular Expression Complexity in nltk/nltk
2021-09-19 19:26:08
nessus
nessus
Ubuntu 16.04 ESM / 18.04 ESM / 20.04 ESM : NLTK vulnerability (USN-5215-1)
2023-10-16 00:00:00
cvelist
cvelist
CVE-2021-3828 Inefficient Regular Expression Complexity in nltk/nltk
2021-09-27 12:25:30
suse
suse
Security update for python-nltk (moderate)
2022-07-03 00:00:00

5 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

45.8%

JSON
Related for GHSA-2WW3-FXVQ-293J
cve1ubuntu1mageia1openvas2veracode1osv4nvd1ubuntucve1prion1debiancve1huntr1nessus1cvelist1suse1