6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.008 Low
EPSS
Percentile
81.7%
Python reports:
The AbstractBasicAuthHandler class of the urllib.request module uses an inefficient
regular expression which can be exploited by an attacker to cause a denial of service.
Fix the regex to prevent the catastrophic backtracking. Vulnerability reported by Ben
Caller and Matt Schwager.
Disallow control characters in hostnames in http.client, addressing CVE-2019-18348.
Such potentially malicious header injection URLs now cause a InvalidURL to be raised.
Disallow CR or LF in email.headerregistry.Address arguments to guard against header
injection attacks.
6.5 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
7.1 High
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:N/AC:M/Au:N/C:N/I:N/A:C
0.008 Low
EPSS
Percentile
81.7%