CVE-2018-7536
Description
An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions (only one regular expression for Django 1.8.x). The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 1.11.11-1 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 1:1.11.11-1 |
| sid | Fixed | 1:1.11.11-1 |
| forky | Fixed | 1:1.11.11-1 |
| bullseye | Fixed | 1:1.11.11-1 |
| bookworm | Fixed | 1:1.11.11-1 |
References
- https://security.archlinux.org/ASA-201803-5
- https://nvd.nist.gov/vuln/detail/CVE-2018-7536
- https://github.com/django/django/commit/1ca63a66ef3163149ad822701273e8a1844192c2
- https://github.com/django/django/commit/abf89d729f210c692a50e0ad3f75fb6bec6fae16
- https://github.com/django/django/commit/e157315da3ae7005fa0683ffc9751dbeca7306c8
- https://access.redhat.com/errata/RHSA-2018:2927
- https://access.redhat.com/errata/RHSA-2019:0051
- https://access.redhat.com/errata/RHSA-2019:0082
- https://access.redhat.com/errata/RHSA-2019:0265
- https://github.com/advisories/GHSA-r28v-mw67-m5p9
- https://github.com/django/django
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2018-5.yaml
- https://lists.debian.org/debian-lts-announce/2018/03/msg00006.html
- https://usn.ubuntu.com/3591-1
- https://web.archive.org/web/20200227131019/http://www.securityfocus.com/bid/103361
- https://www.debian.org/security/2018/dsa-4161
- https://www.djangoproject.com/weblog/2018/mar/06/security-releases
- https://www.djangoproject.com/weblog/2018/mar/06/security-releases/
- http://www.securityfocus.com/bid/103361
- https://usn.ubuntu.com/3591-1/
- https://security-tracker.debian.org/tracker/CVE-2018-7536
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.