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githubGitHub Advisory DatabaseGHSA-P6M5-H7PP-V2X5
HistoryMay 02, 2022 - 3:47 a.m.

Django Regex Algorithmic Complexity Causes Denial of Service

2022-05-0203:47:43
CWE-400
CWE-1333
GitHub Advisory Database
github.com
2

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

6.1 Medium

AI Score

Confidence

High

0.061 Low

EPSS

Percentile

93.6%

Algorithmic complexity vulnerability in the forms library in Django 1.0 before 1.0.4 and 1.1 before 1.1.1 allows remote attackers to cause a denial of service (CPU consumption) via a crafted (1) EmailField (email address) or (2) URLField (URL) that triggers a large amount of backtracking in a regular expression.

Affected configurations

Vulners
Node
django-registration_projectdjango-registrationRange<1.1.1django
OR
django-registration_projectdjango-registrationRange<1.0.4django
CPENameOperatorVersion
djangolt1.1.1
djangolt1.0.4

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

6.1 Medium

AI Score

Confidence

High

0.061 Low

EPSS

Percentile

93.6%