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Python 2.7.x <= 2.7.17, 3.5 <= 3.5.9, 3.6.x <= 3.6.10, 3.7.x <= 3.7.6, 3.8.x <= 3.8.1 Regular Expression Denial of Service (ReDoS) Vulnerability (MAC OS X)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Python is prone to a Regular Expresson Denial of Service (ReDoS) vulnerability.
Insight
Insight
The AbtractBasicAuthHandler class of the urllib.request module uses an inefficient regular expression (catastrophic backtracking) which can be exploited by an attacker to cause a denial of service.
Affected Software
Affected Software
Python 2.7 through 2.7.17, 3.5 through 3.5.9, 3.6 through 3.6.10, 3.7 through 3.7.6, and 3.8 through 3.8.1
Detection Method
Detection Method
Checks if a vulnerable version is present on the target host.
Solution
Solution
No known solution is available as of 17th February, 2020. Information regarding this issue will be updated once solution details are available.