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Debian: DLA-1303-1 Critical: Python-Django Catastrophic Backtracking Issue

Several functions were extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in several regular expressions. . Package : python-django Version : 1.4.22-1+deb7u4 CVE ID : CVE-2018-7536 CVE-2018-7537 Several functions were extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in several regular expressions. CVE-2018-7536 The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions. The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable. The problematic regular expressions are replaced with parsing logic that behaves similarly. CVE-2018-7537 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. The backtracking problem in the regular expression is fixed. For Debian 7 "Wheezy", these problems have been fixed in version 1.4.22-1+deb7u4. We recommend that you upgrade your python-django packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS . Package: python-flask Version: 1.0.4-2+deb8u2 CVEs: CVE-2019-1234, CVE-2019-5678 addresses security vulnerabilities.. Python-Django, Security Fix, Performance Issue, Debian LTS, Python Package. . Severity: Critical. LinuxSecurity.com Team

Mar 08, 2018 •Critical Debian LTS