| Name | CVE-2021-45115 |
| Description | An issue was discovered in Django 2.2 before 2.2.26, 3.2 before 3.2.11, and 4.0 before 4.0.1. UserAttributeSimilarityValidator incurred significant overhead in evaluating a submitted password that was artificially large in relation to the comparison values. In a situation where access to user registration was unrestricted, this provided a potential vector for a denial-of-service attack. |
| 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-3177-1, ELA-914-1 |
| Debian Bugs | 1003113 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| python-django (PTS) | jessie, jessie (lts) | 1.7.11-1+deb8u17 | fixed |
| stretch (security) | 1:1.10.7-2+deb9u17 | vulnerable | |
| stretch (lts), stretch | 1:1.10.7-2+deb9u23 | fixed | |
| buster, buster (lts) | 1:1.11.29-1+deb10u12 | fixed | |
| buster (security) | 1:1.11.29-1+deb10u11 | fixed | |
| bullseye (security), bullseye | 2:2.2.28-1~deb11u2 | fixed | |
| bookworm (security), bookworm | 3:3.2.19-1+deb12u1 | fixed | |
| sid, trixie | 3:4.2.16-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| python-django | source | jessie | (not affected) | |||
| python-django | source | stretch | 1:1.10.7-2+deb9u20 | ELA-914-1 | ||
| python-django | source | buster | 1:1.11.29-1+deb10u3 | DLA-3177-1 | ||
| python-django | source | bullseye | 2:2.2.26-1~deb11u1 | |||
| python-django | source | (unstable) | 2:3.2.11-1 | 1003113 |
[stretch] - python-django <postponed> (Minor issue; fix in next update)
https://www.djangoproject.com/weblog/2022/jan/04/security-releases/
https://github.com/django/django/commit/a8b32fe13bcaed1c0b772fdc53de84abc224fb20 (3.2.11)
https://github.com/django/django/commit/2135637fdd5ce994de110affef9e67dffdf77277 (2.2.26)
[jessie] - python-django <not-affected> (UserAttributeSimilarityValidator added later)