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CVE-2021-3733

Medium priority

Fixed

There's a flaw in urllib's AbstractBasicAuthHandler class. An attacker who controls a malicious HTTP server that an HTTP client (such as web browser) connects to, could trigger a Regular Expression Denial of Service (ReDOS) during...

7 affected packages

python3.10, python3.4, python3.5, python3.6, python3.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python3.10	Not in release	Not affected	Not in release	Not in release	Ignored
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Fixed
python3.6	Not in release	Not in release	Not in release	Fixed	Ignored
python3.7	Not in release	Not in release	Not in release	Fixed	Ignored
python3.8	Not in release	Not in release	Fixed	Fixed	Ignored
python3.9	Not in release	Not in release	Fixed	Not in release	Ignored

CVE-2021-3737

Medium priority

Some fixes available 9 of 10

A flaw was found in python. An improperly handled HTTP response in the HTTP client code of python may allow a remote attacker, who controls the HTTP server, to make the client script enter an infinite loop, consuming CPU time. The...

7 affected packages

python3.10, python3.4, python3.5, python3.6, python3.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python3.10	Not in release	Not affected	Not in release	Not in release	Ignored
python3.4	Not in release	Not in release	Not in release	Not in release	Ignored
python3.5	Not in release	Not in release	Not in release	Not in release	Fixed
python3.6	Not in release	Not in release	Not in release	Fixed	Ignored
python3.7	Not in release	Not in release	Not in release	Fixed	Ignored
python3.8	Not in release	Not in release	Fixed	Fixed	Ignored
python3.9	Not in release	Not in release	Fixed	Not in release	Ignored

CVE-2021-3426

Low priority

Some fixes available 10 of 11

There's a flaw in Python 3's pydoc. A local or adjacent attacker who discovers or is able to convince another local or adjacent user to start a pydoc server could access the server and use it to disclose sensitive information...

8 affected packages

python2.7, python3.10, python3.4, python3.5, python3.6...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.7	Not in release	Not affected	Not affected	Not affected	Not affected
python3.10	Not in release	Not affected	Not in release	Not in release	Not in release
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Fixed
python3.6	Not in release	Not in release	Not in release	Fixed	Not in release
python3.7	Not in release	Not in release	Not in release	Fixed	Not in release
python3.8	Not in release	Not in release	Not affected	Fixed	Not in release
python3.9	Not in release	Not in release	Fixed	Not in release	Not in release

CVE-2021-29921

Medium priority

Fixed

In Python before 3,9,5, the ipaddress library mishandles leading zero characters in the octets of an IP address string. This (in some situations) allows attackers to bypass access control that is based on IP addresses.

8 affected packages

python2.7, python3.10, python3.4, python3.5, python3.6...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.7	Not in release	Not affected	Not affected	Not affected	Not affected
python3.10	Not in release	Not affected	Not in release	Not in release	Not in release
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Not affected
python3.6	Not in release	Not in release	Not in release	Not affected	Not in release
python3.7	Not in release	Not in release	Not in release	Not affected	Not in release
python3.8	Not in release	Not in release	Fixed	Fixed	Not in release
python3.9	Not in release	Not in release	Fixed	Not in release	Not in release

CVE-2021-23336

Low priority

Some fixes available 12 of 29

The package python/cpython from 0 and before 3.6.13, from 3.7.0 and before 3.7.10, from 3.8.0 and before 3.8.8, from 3.9.0 and before 3.9.2 are vulnerable to Web Cache Poisoning via urllib.parse.parse_qsl and urllib.parse.parse_qs...

8 affected packages

python-django, python2.7, python3.4, python3.5, python3.6...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python-django	Fixed	Fixed	Fixed	Fixed	Not affected
python2.7	Not in release	Ignored	Ignored	Ignored	Ignored
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Ignored
python3.6	Not in release	Not in release	Not in release	Ignored	Not in release
python3.7	Not in release	Not in release	Not in release	Ignored	Not in release
python3.8	Not in release	Not in release	Ignored	Ignored	Not in release
python3.9	Not in release	Not in release	Fixed	Not in release	Not in release

CVE-2021-3177

Medium priority

Some fixes available 14 of 15

Python 3.x through 3.9.1 has a buffer overflow in PyCArg_repr in _ctypes/callproc.c, which may lead to remote code execution in certain Python applications that accept floating-point numbers as untrusted input, as demonstrated by...

7 affected packages

python2.7, python3.4, python3.5, python3.6, python3.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.7	Not in release	Not affected	Fixed	Fixed	Fixed
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Fixed
python3.6	Not in release	Not in release	Not in release	Fixed	Not in release
python3.7	Not in release	Not in release	Not in release	Fixed	Not in release
python3.8	Not in release	Not in release	Fixed	Fixed	Not in release
python3.9	Not in release	Not in release	Fixed	Not in release	Not in release

CVE-2020-27619

Low priority

Fixed

In Python 3 through 3.9.0, the Lib/test/multibytecodec_support.py CJK codec tests call eval() on content retrieved via HTTP.

7 affected packages

python2.7, python3.4, python3.5, python3.6, python3.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.7	Not in release	Not affected	Not affected	Not affected	Not affected
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Fixed
python3.6	Not in release	Not in release	Not in release	Fixed	Not in release
python3.7	Not in release	Not in release	Not in release	Fixed	Not in release
python3.8	Not in release	Not in release	Fixed	Fixed	Not in release
python3.9	Not in release	Not in release	Not affected	Not in release	Not in release

CVE-2020-26116

Medium priority

Some fixes available 6 of 9

http.client in Python 3.x before 3.5.10, 3.6.x before 3.6.12, 3.7.x before 3.7.9, and 3.8.x before 3.8.5 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control...

7 affected packages

python2.7, python3.4, python3.5, python3.6, python3.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.7	Not in release	Not affected	Not affected	Not affected	Not affected
python3.4	Not in release	Not in release	Not in release	Not in release	Not in release
python3.5	Not in release	Not in release	Not in release	Not in release	Fixed
python3.6	Not in release	Not in release	Not in release	Fixed	Not in release
python3.7	Not in release	Not in release	Not in release	Fixed	Not in release
python3.8	Not in release	Not in release	Not affected	Fixed	Not in release
python3.9	Not in release	Not in release	Not affected	Not in release	Not in release

CVE-2020-15801

Unknown priority

Not affected

In Python 3.8.4, sys.path restrictions specified in a python38._pth file are ignored, allowing code to be loaded from arbitrary locations. The <executable-name>._pth file (e.g., the python._pth file) is not affected.

7 affected packages

python2.7, python3.4, python3.5, python3.6, python3.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.7	—	—	Not affected	Not affected	Not affected
python3.4	—	—	Not in release	Not in release	Not in release
python3.5	—	—	Not in release	Not in release	Not affected
python3.6	—	—	Not in release	Not affected	Not in release
python3.7	—	—	Not in release	Not affected	Not in release
python3.8	—	—	Not affected	Not affected	Not in release
python3.9	—	—	Not affected	Not in release	Not in release

CVE-2007-4559

Medium priority

Some fixes available 2 of 30

Directory traversal vulnerability in the (1) extract and (2) extractall functions in the tarfile module in Python allows user-assisted remote attackers to overwrite arbitrary files via a .. (dot dot) sequence in filenames in a TAR...

16 affected packages

python2.3, python2.4, python2.5, python2.6, python2.7...

Package	24.04 LTS	22.04 LTS	20.04 LTS	18.04 LTS	16.04 LTS
python2.3	—	—	—	—	—
python2.4	—	—	—	—	—
python2.5	—	—	—	—	—
python2.6	—	—	—	—	—
python2.7	—	Ignored	Ignored	Ignored	Ignored
python3.0	—	—	—	—	—
python3.1	—	—	—	—	—
python3.10	—	Fixed	Not in release	Not in release	Not in release
python3.11	—	Ignored	Not in release	Not in release	Not in release
python3.12	—	Not in release	Not in release	Not in release	Not in release
python3.4	—	Not in release	Not in release	Not in release	Not in release
python3.5	—	Not in release	Not in release	Not in release	Ignored
python3.6	—	Not in release	Not in release	Ignored	Not in release
python3.7	—	Not in release	Not in release	Ignored	Not in release
python3.8	—	Not in release	Ignored	Ignored	Not in release
python3.9	—	Not in release	Ignored	Not in release	Not in release

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