CVE-2022-40023 – python-mako: REDoS in Lexer class

https://notcve.org/view.php?id=CVE-2022-40023

Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin. Sqlalchemy mako versiones anteriores a 1.2.2, es vulnerable a una Denegación de Servicio de expresiones Regulares cuando es usada la clase Lexer para analizar. Esto también afecta a babelplugin y linguaplugin A vulnerability was found in the mako package. Affected versions of this package are vulnerable to Regular expression denial of service (ReDoS) attacks, affecting system availability. • https://github.com/sqlalchemy/mako/blob/c2f392e0be52dc67d1b9770ab8cce6a9c736d547/mako/ext/extract.py#L21 https://github.com/sqlalchemy/mako/commit/925760291d6efec64fda6e9dd1fd9cfbd5be068c https://github.com/sqlalchemy/mako/issues/366 https://lists.debian.org/debian-lts-announce/2022/09/msg00026.html https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages https://pyup.io/vulnerabilities/CVE-2022-40023/50870 https://access.redhat.com/security/cve/CVE-2022-40023 https://bugzilla.redhat.com • CWE-1333: Inefficient Regular Expression Complexity •