Django denial-of-service possibility in urlize and urlizetrunc template filters

中 5.3CVE-2018-7536 · GHSA-r28v-mw67-m5p9 · PYSEC-2018-5 · 09/03/2018 公開 · 17/06/2026 更新

パッケージ	影響を受けるバージョン	修正済みバージョン
django PyPI	`≥ 1.11, < 1.11.11≥ 1.11a1, < 1.11.11≥ 1.8, < 1.8.19≥ 1.8a1, < 1.8.19≥ 2.0, < 2.0.3≥ 2.0a1, < 2.0.3`	`1.11.111.8.192.0.3`
django djangoproject	`≥ 1.11, < 1.11.11≥ 1.8, < 1.8.19≥ 2.0, < 2.0.3`	`1.11.111.8.192.0.3`
openstack redhat	`= 10= 13`	修正版なし

概要

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.

NVD の説明

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.