Bazaar could be made run programs as your login if it opened a specially crafted URL.
USN-3411-1 fixed a vulnerability in Bazaar. This update provides the corresponding update for Ubuntu 12.04 ESM.
24 October 2017
A security issue affects these releases of Ubuntu and its derivatives:
Bazaar could be made run programs as your login if it opened a specially crafted URL.
USN-3411-1 fixed a vulnerability in Bazaar. This update provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
Adam Collard discovered that Bazaar did not properly handle host names in ‘bzr+ssh://’ URLs. A remote attacker could use this to construct a bazaar repository URL that when accessed could run arbitrary code with the privileges of the user.
The problem can be corrected by updating your system to the following package versions:
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.