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CVE-2020-10735

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Date: September 9, 2022

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 100,000 digits and 5s for 1,000,000 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.

Language: C

Severity Score

Related Resources (52)

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TMWPRAAJS7I6U3U45V7GZVXWNSECI22M/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/V7ZUJDHK7KNG6SLIFXW7MNZ6O2PUJYK6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WXF6MQ74HVIDDSR5AE2UDR24I6D4FEPC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OKYE2DOI2X7WZXAWTQJZAXYIWM37HDCY/
http://www.openwall.com/lists/oss-security/2022/09/21/4
https://github.com/python/cpython/issues/95778
https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y
https://access.redhat.com/errata/RHSA-2022:7323
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NHC6IUU7CLRQ3QLPWUXLONSG3SXFTR47/
https://nvd.nist.gov/vuln/detail/CVE-2020-10735
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/32AAQKABEKFCB5DDV5OONRZK6BS23HPW/
http://www.openwall.com/lists/oss-security/2022/09/21/1
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBPDVCDIUCEBE7C4NAGNA2KQJYOTPBAZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZEOAJWGGY55QU35UM2OVZATBW5MX2OZD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/76YE7AM37MRU76XJV4M27CWDAMUGNRYK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HSRPVJZL6DJFWKYRHMNJB7VCEUCBKRF5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFGV7P2PYFBMK32OKHCAC2ZPJQV5AUDF/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OT5U223OE5ZOUHZAZYSYSWVJQIKDE73E/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OT5WQB7Z3CXOWVBD2AFAHYPA5ONYFFZ4/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2VCU6EVQDIXNCEDJUCTFIER2WVNNDTYZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PD7FTLJOIGMUSCDR3JAN6WRFHJEE4PH5/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4EWKR2SPX3JORLWCXFY3KN2U5B5CIUQQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U4ZZV4CDFRMTPDBI7C5L43RFL3XLIGUY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XL6E5A3I36TRR73VNBOXNIQP4AMZDFZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V7ZUJDHK7KNG6SLIFXW7MNZ6O2PUJYK6/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBPDVCDIUCEBE7C4NAGNA2KQJYOTPBAZ/
https://access.redhat.com/security/cve/CVE-2020-10735
https://security-tracker.debian.org/tracker/CVE-2020-10735
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSRPVJZL6DJFWKYRHMNJB7VCEUCBKRF5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OT5U223OE5ZOUHZAZYSYSWVJQIKDE73E/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NHC6IUU7CLRQ3QLPWUXLONSG3SXFTR47/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZEOAJWGGY55QU35UM2OVZATBW5MX2OZD/
https://access.redhat.com/errata/RHSA-2022:6766
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IFGV7P2PYFBMK32OKHCAC2ZPJQV5AUDF/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SZYJSGLSCQOKXXFVJVJQAXLEOJBIWGEL/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4EWKR2SPX3JORLWCXFY3KN2U5B5CIUQQ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PD7FTLJOIGMUSCDR3JAN6WRFHJEE4PH5/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U4ZZV4CDFRMTPDBI7C5L43RFL3XLIGUY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TD7JDDKJXK6D26XAN3YRFNM2LAJHT5UO/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VCU6EVQDIXNCEDJUCTFIER2WVNNDTYZ/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXF6MQ74HVIDDSR5AE2UDR24I6D4FEPC/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OT5WQB7Z3CXOWVBD2AFAHYPA5ONYFFZ4/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XL6E5A3I36TRR73VNBOXNIQP4AMZDFZ/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OKYE2DOI2X7WZXAWTQJZAXYIWM37HDCY/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMWPRAAJS7I6U3U45V7GZVXWNSECI22M/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/76YE7AM37MRU76XJV4M27CWDAMUGNRYK/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TD7JDDKJXK6D26XAN3YRFNM2LAJHT5UO/
https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html
https://bugzilla.redhat.com/show_bug.cgi?id=1834423
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/32AAQKABEKFCB5DDV5OONRZK6BS23HPW/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SZYJSGLSCQOKXXFVJVJQAXLEOJBIWGEL/
https://www.mend.io/vulnerability-database/CVE-2020-10735

Severity Score

Weakness Type (CWE)

Incorrect Type Conversion or Cast

CWE-704

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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