| Name | CVE-2022-0391 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3575-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python2.7 (PTS) | buster | 2.7.16-2+deb10u1 | vulnerable |
| buster (security) | 2.7.16-2+deb10u4 | fixed | |
| bullseye | 2.7.18-8+deb11u1 | fixed | |
| python3.7 (PTS) | buster | 3.7.3-2+deb10u3 | vulnerable |
| buster (security) | 3.7.3-2+deb10u7 | vulnerable | |
| python3.9 (PTS) | bullseye | 3.9.2-1 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python2.7 | source | buster | 2.7.16-2+deb10u3 | DLA-3575-1 | ||
| python2.7 | source | bullseye | 2.7.18-8+deb11u1 | |||
| python2.7 | source | (unstable) | (unfixed) | |||
| python3.4 | source | (unstable) | (unfixed) | |||
| python3.5 | source | (unstable) | (unfixed) | |||
| python3.7 | source | (unstable) | (unfixed) | |||
| python3.9 | source | (unstable) | 3.9.7-1 |
[bullseye] - python3.9 <no-dsa> (Minor issue)
[buster] - python3.7 <ignored> (Minor issue, different approach to sanitization; regressions reports)
https://bugs.python.org/issue43882
Regressions reported for django, boto-core and cloud-init
Fixed by: https://github.com/python/cpython/commit/76cd81d60310d65d01f9d7b48a8985d8ab89c8b4 (v3.10.0b1)
Followup for 3.10.x: https://github.com/python/cpython/commit/24f1d1a8a2c4aa58a606b4b6d5fa4305a3b91705 (v3.10.0b2)
Fixed by: https://github.com/python/cpython/commit/491fde0161d5e527eeff8586dd3972d7d3a631a7 (v3.9.5)
Followup for 3.9.x: https://github.com/python/cpython/commit/8a595744e696a0fb92dccc5d4e45da41571270a1 (v3.9.6)
Fixed by: https://github.com/python/cpython/commit/515a7bc4e13645d0945b46a8e1d9102b918cd407 (v3.8.11)
Fixed by: https://github.com/python/cpython/commit/f4dac7ec55477a6c5d965e594e74bd6bda786903 (v3.7.11)
Fixed by: https://github.com/python/cpython/commit/6c472d3a1d334d4eeb4a25eba7bf3b01611bf667 (v3.6.14)