Vulnerability Details : CVE-2020-10735
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.
Products affected by CVE-2020-10735
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:software_collections:-:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:quay:3.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha1:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha2:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha3:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha4:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha5:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha6:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:alpha7:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:beta5:*:*:*:*:*:*
- cpe:2.3:a:python:python:3.11.0:rc1:*:*:*:*:*:*
Threat overview for CVE-2020-10735
Top countries where our scanners detected CVE-2020-10735
Top open port discovered on systems with this issue
80
IPs affected by CVE-2020-10735 343,661
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2020-10735!
*Directly or indirectly through your vendors, service providers and 3rd parties.
Powered by
attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2020-10735
0.32%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 52 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-10735
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-10735
-
The product does not correctly convert an object, resource, or structure from one type to a different type.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-10735
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http://www.openwall.com/lists/oss-security/2022/09/21/1
oss-security - big ints in python: CVE-2020-10735Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/32AAQKABEKFCB5DDV5OONRZK6BS23HPW/
[SECURITY] Fedora 35 Update: python3.8-3.8.14-1.fc35 - package-announce - Fedora Mailing-Lists
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U4ZZV4CDFRMTPDBI7C5L43RFL3XLIGUY/
[SECURITY] Fedora 37 Update: python3.7-3.7.14-1.fc37 - package-announce - Fedora Mailing-Lists
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https://bugzilla.redhat.com/show_bug.cgi?id=1834423
1834423 – (CVE-2020-10735) CVE-2020-10735 python: int() type in PyLong_FromString() does not limit amount of digits converting text to int leading to DoSIssue Tracking;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OKYE2DOI2X7WZXAWTQJZAXYIWM37HDCY/
[SECURITY] Fedora 35 Update: python3.9-3.9.14-1.fc35 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HSRPVJZL6DJFWKYRHMNJB7VCEUCBKRF5/
[SECURITY] Fedora 37 Update: python3.9-3.9.14-1.fc37 - package-announce - Fedora Mailing-Lists
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https://github.com/python/cpython/issues/95778
CVE-2020-10735: Prevent DoS by large int<->str conversions · Issue #95778 · python/cpython · GitHubPatch;Third Party Advisory
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https://lists.debian.org/debian-lts-announce/2023/06/msg00039.html
[SECURITY] [DLA 3477-1] python3.7 security update
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SZYJSGLSCQOKXXFVJVJQAXLEOJBIWGEL/
[SECURITY] Fedora 37 Update: python3.8-3.8.14-1.fc37 - package-announce - Fedora Mailing-Lists
-
https://access.redhat.com/security/cve/CVE-2020-10735
CVE-2020-10735- Red Hat Customer PortalThird Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IFGV7P2PYFBMK32OKHCAC2ZPJQV5AUDF/
[SECURITY] Fedora 37 Update: mingw-python3-3.10.8-1.fc37 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMWPRAAJS7I6U3U45V7GZVXWNSECI22M/
[SECURITY] Fedora 37 Update: python3.6-3.6.15-13.fc37 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZEOAJWGGY55QU35UM2OVZATBW5MX2OZD/
[SECURITY] Fedora 35 Update: python3-docs-3.10.7-1.fc35 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OT5WQB7Z3CXOWVBD2AFAHYPA5ONYFFZ4/
[SECURITY] Fedora 35 Update: python3.7-3.7.14-1.fc35 - package-announce - Fedora Mailing-Lists
-
https://docs.google.com/document/d/1KjuF_aXlzPUxTK4BMgezGJ2Pn7uevfX7g0_mvgHlL7Y
[1-pager] CPython int string conversion limit for CVE-2020-10735 DoS - Google DocumentenThird Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UBPDVCDIUCEBE7C4NAGNA2KQJYOTPBAZ/
[SECURITY] Fedora 37 Update: python3-docs-3.11.0~rc2-1.fc37 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VCU6EVQDIXNCEDJUCTFIER2WVNNDTYZ/
[SECURITY] Fedora 36 Update: python3.8-3.8.14-1.fc36 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NHC6IUU7CLRQ3QLPWUXLONSG3SXFTR47/
[SECURITY] Fedora 36 Update: python3.6-3.6.15-12.fc36 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4EWKR2SPX3JORLWCXFY3KN2U5B5CIUQQ/
[SECURITY] Fedora 36 Update: python3.9-3.9.14-1.fc36 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PD7FTLJOIGMUSCDR3JAN6WRFHJEE4PH5/
[SECURITY] Fedora 36 Update: python3.11-3.11.0~rc2-1.fc36 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/76YE7AM37MRU76XJV4M27CWDAMUGNRYK/
[SECURITY] Fedora 35 Update: python3.11-3.11.0~rc2-1.fc35 - package-announce - Fedora Mailing-Lists
-
http://www.openwall.com/lists/oss-security/2022/09/21/4
oss-security - Re: big ints in python: CVE-2020-10735Mailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V7ZUJDHK7KNG6SLIFXW7MNZ6O2PUJYK6/
[SECURITY] Fedora 36 Update: python3.7-3.7.14-1.fc36 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TD7JDDKJXK6D26XAN3YRFNM2LAJHT5UO/
[SECURITY] Fedora 35 Update: python3.6-3.6.15-6.fc35 - package-announce - Fedora Mailing-Lists
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XL6E5A3I36TRR73VNBOXNIQP4AMZDFZ/
[SECURITY] Fedora 37 Update: python3.10-3.10.7-1.fc37 - package-announce - Fedora Mailing-Lists
-
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/OT5U223OE5ZOUHZAZYSYSWVJQIKDE73E/
[SECURITY] Fedora 36 Update: python3-docs-3.10.7-1.fc36 - package-announce - Fedora Mailing-Lists
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