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USN-983-1: Sudo vulnerability

7 September 2010

Under non-default configurations, a local user could run programs with administrator privileges.



  • sudo - Provide limited super user privileges to specific users


Markus Wuethrich discovered that sudo did not always verify the user when a
group was specified in the Runas_Spec. A local attacker could exploit this
to execute arbitrary code as root if sudo was configured to allow the
attacker to use a program as a group when the attacker was not a part of
that group.

Update instructions

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

Ubuntu 9.10
Ubuntu 10.04

In general, a standard system update will make all the necessary changes.