USN-1382-1: Light Display Manager vulnerability

Releases

• Ubuntu 11.10

Packages

• lightdm - Display Manager

Details

Austin Clements discovered that Light Display Manager incorrectly leaked
file descriptors to child processes. A local attacker can use this to
bypass intended permissions and write to the log file, cause a denial of
service, or possibly have another unknown impact.

Update instructions

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

Ubuntu 11.10

• liblightdm-gobject-1-0 - 1.0.6-0ubuntu1.4
• liblightdm-qt-1-0 - 1.0.6-0ubuntu1.4
• lightdm - 1.0.6-0ubuntu1.4
• lightdm-gtk-greeter - 1.0.6-0ubuntu1.4
• lightdm-qt-greeter - 1.0.6-0ubuntu1.4

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

• https://launchpad.net/bugs/927060