USN-6792-1: Flask-Security vulnerability

Releases

• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS
• Ubuntu 18.04 ESM

Packages

• flask-security - Simple security for Flask apps (Python 3)

Details

Naom Moshe discovered that Flask-Security incorrectly validated URLs. An attacker could use this issue to redirect users to arbitrary URLs.

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 22.04

• python3-flask-security - 4.0.0-1ubuntu0.1

Ubuntu 20.04

• python3-flask-security - 1.7.5-2ubuntu0.20.04.1

Ubuntu 18.04

• python3-flask-security - 1.7.5-2ubuntu0.18.04.1~esm1
  Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

• CVE-2021-23385