USN-3990-2: urllib3 vulnerability
python-urllib3 vulnerability
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
Summary
urllib3 could be used to perform a CRLF injection if it received a specially
crafted request.
Software Description
- python-urllib3 – HTTP library with thread-safe connection pooling for Python
Details
USN-3990-1 fixed a vulnerability in urllib3. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that urllib3 incorrectly stripped certain characters from
requests. A remote attacker could use this issue to perform CRLF injection.
(CVE-2019-11236)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 ESM
- python-urllib3 – 1.7.1-1ubuntu4.1+esm1
- python3-urllib3 – 1.7.1-1ubuntu4.1+esm1
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
In general, a standard system update will make all the necessary changes.