GHSA-2f9x-5v75-3qv4
Vulnerability from github
Published
2019-01-04 17:50
Modified
2024-09-17 15:09
Severity
5.3 (Medium) - CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
2.7 (Low) - CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
2.7 (Low) - CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U
Summary
Django Denial-of-service possibility in truncatechars_html and truncatewords_html template filters
Details
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.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "2.0"
},
{
"fixed": "2.0.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "1.11"
},
{
"fixed": "1.11.11"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "PyPI",
"name": "Django"
},
"ranges": [
{
"events": [
{
"introduced": "1.8"
},
{
"fixed": "1.8.19"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-7537"
],
"database_specific": {
"cwe_ids": [
"CWE-185"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T20:51:51Z",
"nvd_published_at": null,
"severity": "MODERATE"
},
"details": "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\u0027s 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.",
"id": "GHSA-2f9x-5v75-3qv4",
"modified": "2024-09-17T15:09:40Z",
"published": "2019-01-04T17:50:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-7537"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/94c5da1d17a6b0d378866c66b605102c19f7988c"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/a91436360b79a6ff995c3e5018bcc666dfaf1539"
},
{
"type": "WEB",
"url": "https://github.com/django/django/commit/d17974a287a6ea2e361daff88fcc004cbd6835fa"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:2927"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0265"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-2f9x-5v75-3qv4"
},
{
"type": "PACKAGE",
"url": "https://github.com/django/django"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2018-6.yaml"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/03/msg00006.html"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3591-1"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4161"
},
{
"type": "WEB",
"url": "https://www.djangoproject.com/weblog/2018/mar/06/security-releases"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U",
"type": "CVSS_V4"
}
],
"summary": "Django Denial-of-service possibility in truncatechars_html and truncatewords_html template filters"
}
Loading...