CVE-2021-3572

2021-11-1000:00:00

ubuntu.com

python-pip

remote attacker

git references

data integrity

vulnerability

CVSS2

3.5

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS3

5.7

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N

EPSS

0.001

Percentile

28.0%

JSON

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 is fixed in python-pip version
21.1.

Bugs

<https://bugs.launchpad.net/ubuntu/+source/python-pip/+bug/1926957>

Notes

Author	Note
sbeattie	pip < 10, i.e. pip in bionic and older, parses git references differently, requiring a more significant backport

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchpython-pip< 9.0.1-2.3~ubuntu1.18.04.8+esm1UNKNOWN
ubuntu14.04noarchpython-pip< 8.1.1-2ubuntu0.6+esm2UNKNOWN
ubuntu16.04noarchpython-pip< 8.1.1-2ubuntu0.6+esm2UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	python-pip	< 9.0.1-2.3~ubuntu1.18.04.8+esm1	UNKNOWN
ubuntu	14.04	noarch	python-pip	< 8.1.1-2ubuntu0.6+esm2	UNKNOWN
ubuntu	16.04	noarch	python-pip	< 8.1.1-2ubuntu0.6+esm2	UNKNOWN