USN-4247-3: python-apt vulnerabilities
python-apt vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.04 ESM
- Ubuntu 12.04 ESM
Summary
Several security issues were fixed in python-apt.
Software Description
- python-apt – Python interface to libapt-pkg
Details
USN-4247-1 fixed several vulnerabilities in python-apt. This update
provides the corresponding updates for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that python-apt would still use MD5 hashes to validate
certain downloaded packages. If a remote attacker were able to perform a
man-in-the-middle attack, this flaw could potentially be used to install
altered packages. (CVE-2019-15795)
It was discovered that python-apt could install packages from untrusted
repositories, contrary to expectations. (CVE-2019-15796)
Update instructions
The problem can be corrected by updating your system to the following package versions:
- Ubuntu 14.04 ESM
- python-apt – 0.9.3.5ubuntu3+esm2
- python3-apt – 0.9.3.5ubuntu3+esm2
- Ubuntu 12.04 ESM
- python-apt – 0.8.3ubuntu7.5
- python3-apt – 0.8.3ubuntu7.5
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.
References
Source: USN-4247-3: python-apt vulnerabilities
