USN-3411-2: Bazaar vulnerability

Ubuntu Security Notice USN-3411-2

24th October, 2017

bzr vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.04 LTS

Summary

Bazaar could be made run programs as your login if it opened a specially crafted URL.

Software description

  • bzr - easy to use distributed version control system

Details

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.

Update instructions

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

Ubuntu 12.04 LTS:
python-bzrlib 2.5.1-0ubuntu2.1
bzr 2.5.1-0ubuntu2.1

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

CVE-2017-14176