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A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases when using int("text") a system could take 50ms to parse an int string with 100000 digits and 5s for 1000000 digits (float decimal int.from_bytes() and int() for binary bases 2 4 8 16 and 32 are not affected). The highest threat from this vulnerability is to system availability.

🗓️ 20 Jan 2023 08:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 1 Views

A Python parsing flaw causes quadratic time for int string parsing, impacting availability.

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Vulners
Node
microsoftcm1_python3_3.7.16-1Range<3.7.16-1

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13 Jun 2023 07:00Current
7.3High risk
Vulners AI Score7.3
CVSS 3.17.5
EPSS0.00384
python parser flawquadratic time complexitynon binary basesint string parsingavailability impact
1