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CVE-2021-3572

Published: 10 November 2021

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.

Notes

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

Priority

Low

Cvss 3 Severity Score

5.7

Score breakdown

Status

Package Release Status
python-pip
Launchpad, Ubuntu, Debian
bionic
Released (9.0.1-2.3~ubuntu1.18.04.8+esm1)
Available with Ubuntu Pro
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
jammy Not vulnerable
(20.3.4-4)
kinetic Not vulnerable
(20.3.4-4)
lunar Not vulnerable
(20.3.4-4)
upstream
Released (20.3.4-2)
xenial
Released (8.1.1-2ubuntu0.6+esm2)
Available with Ubuntu Pro
impish Not vulnerable
(20.3.4-4)
focal Not vulnerable
(20.0.2-5ubuntu1.5)
trusty
Released (8.1.1-2ubuntu0.6+esm2)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
Patches:
upstream: https://github.com/pypa/pip/commit/ca832b2836e0bffa7cf95589acdcd71230f5834e (21.1)

Severity score breakdown

Parameter Value
Base score 5.7
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N