CVE-2020-10735
- State
- Published
- Severity
- 6.2 Medium
- Published
- Sep 9, 2022
- Updated
- Oct 14, 2026
- Reserved
- Mar 20, 2020
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.2 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-704 Incorrect Type Conversion or Cast
Affected Products
| Product | Versions |
|---|---|
pythonn/a |
|
References
- https://access.redhat.com/security/cve/CVE-2020-10735
- https://github.com/python/cpython/issues/95778
- https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y
- https://bugzilla.redhat.com/show_bug.cgi?id=1834423
- FEDORA-2022-46a44a7f83vendor-advisory
- FEDORA-2022-66b65beccbvendor-advisory
- FEDORA-2022-4b31e33ed0vendor-advisory
- FEDORA-2022-6d57598a23vendor-advisory
- FEDORA-2022-f330bbfda2vendor-advisory
- FEDORA-2022-29d436596fvendor-advisory
- FEDORA-2022-b01214472evendor-advisory
- FEDORA-2022-dd5032bedfvendor-advisory
- FEDORA-2022-8535093cbavendor-advisory
- FEDORA-2022-72213986b8vendor-advisory
- [oss-security] 20220921 big ints in python: CVE-2020-10735mailing-list
- [oss-security] 20220921 Re: big ints in python: CVE-2020-10735mailing-list
- FEDORA-2022-f511f8f58bvendor-advisory
- FEDORA-2022-c072cdc3c8vendor-advisory
- FEDORA-2022-0b3904c674vendor-advisory
- FEDORA-2022-141f632a6fvendor-advisory
- FEDORA-2022-ac82a548dfvendor-advisory
- FEDORA-2022-d4570fc1a6vendor-advisory
- FEDORA-2022-b8b34e62abvendor-advisory
- FEDORA-2022-d1682fef04vendor-advisory
- FEDORA-2022-79843dfb3cvendor-advisory
- FEDORA-2022-958fd7a32evendor-advisory
- https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html
- https://lists.debian.org/debian-lts-announce/2024/12/msg00000.html
- https://lists.debian.org/debian-lts-announce/2024/11/msg00024.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-806742.html
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