CVE-2022-0391

A flaw was found in Python, specifically within the urllib.parse module. This module helps break Uniform Resource Locator (URL) strings into components. The issue involves how the urlparse method does not sanitize input and allows characters like '\r' and '\n' in the URL path. This flaw allows an attacker to input a crafted URL, leading to injection attacks. This flaw affects Python versions prior to 3.10.0b1, 3.9.5, 3.8.11, 3.7.11 and 3.6.14.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
python2.7	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Ignored
	22.04 LTS jammy	Fixed 2.7.18-13ubuntu1.2+esm1 Ubuntu Pro
	21.10 impish	Ignored
	20.04 LTS focal	Fixed 2.7.18-1~20.04.4+esm1 Ubuntu Pro
	18.04 LTS bionic	Fixed 2.7.17-1~18.04ubuntu1.7
	16.04 LTS xenial	Fixed 2.7.12-1ubuntu0~16.04.18+esm1 Ubuntu Pro
	14.04 LTS trusty	Fixed 2.7.6-8ubuntu0.6+esm12 Ubuntu Pro
python3.10	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
python3.4	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Fixed 3.4.3-1ubuntu1~14.04.7+esm12 Ubuntu Pro
python3.5	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Fixed 3.5.2-2ubuntu0~16.04.13+esm2 Ubuntu Pro
	14.04 LTS trusty	Fixed 3.5.2-2ubuntu0~16.04.4~14.04.1+esm1 Ubuntu Pro
python3.6	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Fixed 3.6.9-1~18.04ubuntu1.7
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
python3.7	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Fixed 3.7.5-2ubuntu1~18.04.2+esm3 Ubuntu Pro
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
python3.8	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not in release
	20.04 LTS focal	Fixed 3.8.10-0ubuntu1~20.04.4
	18.04 LTS bionic	Fixed 3.8.0-3ubuntu1~18.04.2+esm2 Ubuntu Pro
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release
python3.9	24.04 LTS noble	Not in release
	23.10 mantic	Not in release
	23.04 lunar	Not in release
	22.10 kinetic	Not in release
	22.04 LTS jammy	Not in release
	21.10 impish	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Ignored
	14.04 LTS trusty	Ignored

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Notes

leosilva

for python2.7 code affected, urlsplit is in Lib/urlparse.py. according with Debian, the fix for python3.5 causes regressions.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
python3.6	Upstream: 6c472d3
python3.7	Upstream: f4dac7e
python3.8	Upstream: https://github.com/python/cpython/pull/25726/commits/56cdbe0a2cb396932aa0de14eb0b70c9a0686631
python3.9	Upstream: https://github.com/python/cpython/pull/25853/commits/7a4406034750d0fe1f9b3bf2e020c7b7a6936066

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	High
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

USN-5342-1
Python vulnerabilities
28 March 2022

USN-5342-2
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24 August 2022

USN-6891-1
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11 July 2024

Cvss 3 Severity Score