Summary
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.
Security Fix(es):
* python: Information disclosure via pydoc (CVE-2021-3426)
* python: urllib: Regular expression DoS in AbstractBasicAuthHandler (CVE-2021-3733)
* python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS (CVE-2021-28957)
* python-ipaddress: Improper input validation of octal strings (CVE-2021-29921)
* python-urllib3: ReDoS in the parsing of authority part of URL (CVE-2021-33503)
* python-pip: Incorrect handling of unicode separators in git references (CVE-2021-3572)
* python: urllib: HTTP client possible infinite loop on a 100 Continue response (CVE-2021-3737)
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.
Fixed packages 36
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 8 | python39-attrs | 20.3.0-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-cffi | 1.14.3-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-chardet | 3.0.4-19.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-cryptography | 3.3.1-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-Cython | 0.29.21-5.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-idna | 2.10-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-iniconfig | 1.1.1-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-mod_wsgi | 4.7.1-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-more-itertools | 8.5.0-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-numpy | 1.19.4-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-numpy-doc | 1.19.4-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-numpy-f2py | 1.19.4-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-packaging | 20.4-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-pluggy | 0.13.1-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-ply | 3.11-10.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-psutil | 5.8.0-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-psycopg2 | 2.8.6-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-psycopg2-doc | 2.8.6-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-psycopg2-tests | 2.8.6-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-py | 1.10.0-1.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-pycparser | 2.20-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-PyMySQL | 0.10.1-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-pyparsing | 2.4.7-5.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-pysocks | 1.7.1-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-pytest | 6.0.2-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-pyyaml | 5.4.1-1.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-requests | 2.25.0-2.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-scipy | 1.5.4-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-setuptools | 50.3.2-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-setuptools-wheel | 50.3.2-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-six | 1.15.0-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-toml | 0.10.1-5.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-urllib3 | 1.25.10-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-wcwidth | 0.2.5-3.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-wheel | 1:0.35.1-4.module_el8.6.0+2780+a40f65e1 |
| AlmaLinux · 8 | python39-wheel-wheel | 1:0.35.1-4.module_el8.6.0+2780+a40f65e1 |
Vulnerabilities 7
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High 7.5
Catastrophic backtracking in URL authority parser when passed URL containing many @ characters
An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a para…
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High 7.5CVE-2021-3737 EPSS 13%
A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote at…
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Medium 6.1
lxml vulnerable to Cross-Site Scripting
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attac…
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Medium 5.7
There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or …
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Medium 5.7CVE-2021-3572 Public exploit
Improper Input Validation in pip
A flaw was found in python-pip in the way it handled Unicode separators in git references. A remote attacker could possibly use this issue to install a different revision on a repository. The highest threat from this vulnerability is to data integrity. This i…
-
Unscored —
In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string.…
-
Unscored —
There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTT…
References
-
report
https://vulners.com/cve/CVE-2021-28957
-
report
https://vulners.com/cve/CVE-2021-29921
-
report
https://vulners.com/cve/CVE-2021-33503
-
report
https://vulners.com/cve/CVE-2021-3426
-
report
https://vulners.com/cve/CVE-2021-3572
-
report
https://vulners.com/cve/CVE-2021-3733
-
report
https://vulners.com/cve/CVE-2021-3737