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CVE-2023-41105

Published: 23 August 2023

An issue was discovered in Python 3.11 through 3.11.4. If a path containing '\0' bytes is passed to os.path.normpath(), the path will be truncated unexpectedly at the first '\0' byte. There are plausible cases in which an application would have rejected a filename for security reasons in Python 3.10.x or earlier, but that filename is no longer rejected in Python 3.11.x.

Notes

AuthorNote
iconstantin
This behavior change was introduced starting in Python 3.11.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
python
Launchpad, Ubuntu, Debian
trusty Ignored
(end of standard support)
xenial Ignored
(end of standard support)
bionic Ignored
(end of standard support)
focal Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

mantic Does not exist

python2.7
Launchpad, Ubuntu, Debian
lunar Does not exist

upstream Needs triage

bionic Not vulnerable
(see notes)
focal Not vulnerable
(see notes)
jammy Not vulnerable
(see notes)
trusty Not vulnerable
(see notes)
xenial Not vulnerable
(see notes)
mantic Does not exist

python3.4
Launchpad, Ubuntu, Debian
xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

trusty Not vulnerable
(see notes)
mantic Does not exist

python3.5
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

trusty Not vulnerable
(see notes)
xenial Not vulnerable
(see notes)
mantic Does not exist

python3.6
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

bionic Not vulnerable
(see notes)
mantic Does not exist

python3.7
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

bionic Not vulnerable
(see notes)
mantic Does not exist

python3.8
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

bionic Not vulnerable
(see notes)
focal Not vulnerable
(see notes)
mantic Does not exist

python3.9
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

focal Not vulnerable
(see notes)
mantic Does not exist

python3.10
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

lunar Does not exist

upstream Needs triage

jammy Not vulnerable
(see notes)
mantic Does not exist

python3.11
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Needed

lunar Needed

mantic Not vulnerable
(3.11.6-3)
upstream
Released (3.11.5-1)
Patches:
upstream: https://github.com/python/cpython/pull/107982

python3.12
Launchpad, Ubuntu, Debian
trusty Does not exist

xenial Does not exist

bionic Does not exist

focal Does not exist

jammy Does not exist

lunar Does not exist

upstream Needs triage

mantic Not vulnerable
(3.12.0-1)
Patches:

upstream: https://github.com/python/cpython/pull/107981

Severity score breakdown

Parameter Value
Base score 7.5
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