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ALSA-2020:4641 Not scored

Moderate: python38:3.8 security, bug fix, and enhancement update

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. The following packages have been upgraded to a later upstream version: python38 (3.8.3). (BZ#1847416) Security Fix(es): * PyYAML: command execution through python/object/apply constructor in FullLoader (CVE-2019-20477) * python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907) * PyYAML: arbitrary command execution through python/object/new when FullLoader is used (CVE-2020-1747) * python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS (CVE-2020-8492) * python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

Exploit probability Not scored
Published November 3, 2020
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

AlmaLinux:8 python38-Cython
AlmaLinux:8 python38-asn1crypto
AlmaLinux:8 python38-cffi
AlmaLinux:8 python38-chardet
AlmaLinux:8 python38-cryptography
AlmaLinux:8 python38-idna
AlmaLinux:8 python38-markupsafe
AlmaLinux:8 python38-mod_wsgi
AlmaLinux:8 python38-psycopg2
AlmaLinux:8 python38-psycopg2-doc
AlmaLinux:8 python38-psycopg2-tests
AlmaLinux:8 python38-pycparser
AlmaLinux:8 python38-pysocks
AlmaLinux:8 python38-pytz
AlmaLinux:8 python38-requests
AlmaLinux:8 python38-scipy

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities ALSA-2020:4641

Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to many system calls and libraries, as well as to various windowing systems. The following packages have been upgraded to a later upstream version: python38 (3.8.3). (BZ#1847416) Security Fix(es): * PyYAML: command execution through python/object/apply constructor in FullLoader (CVE-2019-20477) * python: infinite loop in the tarfile module via crafted TAR archive (CVE-2019-20907) * PyYAML: arbitrary command execution through python/object/new when FullLoader is used (CVE-2020-1747) * python: wrong backtracking in urllib.request.AbstractBasicAuthHandler allows for a ReDoS (CVE-2020-8492) * python: DoS via inefficiency in IPv{4,6}Interface classes (CVE-2020-14422) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.

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05 / REFERENCES

Further evidence