Vulnerability Details : CVE-2018-7537
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. If django.utils.text.Truncator's chars() and words() methods were passed the html=True argument, they were extremely slow to evaluate certain inputs due to a catastrophic backtracking vulnerability in a regular expression. The chars() and words() methods are used to implement the truncatechars_html and truncatewords_html template filters, which were thus vulnerable.
Products affected by CVE-2018-7537
- cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
- cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-7537
2.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 82 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-7537
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2018-7537
-
The product specifies a regular expression in a way that causes data to be improperly matched or compared.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-7537
-
http://www.securityfocus.com/bid/103357
Django CVE-2018-7537 Multiple Denial of Service VulnerabilitiesThird Party Advisory;VDB Entry
-
https://access.redhat.com/errata/RHSA-2019:0265
RHSA-2019:0265 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://usn.ubuntu.com/3591-1/
USN-3591-1: Django vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2018:2927
RHSA-2018:2927 - Security Advisory - Red Hat Customer PortalThird Party Advisory
-
https://www.djangoproject.com/weblog/2018/mar/06/security-releases/
Django security releases issued: 2.0.3, 1.11.11, and 1.8.19 | Weblog | DjangoRelease Notes;Vendor Advisory
-
https://www.debian.org/security/2018/dsa-4161
Debian -- Security Information -- DSA-4161-1 python-djangoThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/03/msg00006.html
[SECURITY] [DLA 1303-1] python-django security updateMailing List;Third Party Advisory
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