ii  linux-headers-3.8.0-23                        3.8.0-23.34                                       all          Header files related to Linux kernel version 3.8.0
ii  linux-headers-3.8.0-23-generic                3.8.0-23.34                                       amd64        Linux kernel headers for version 3.8.0 on 64 bit x86 SMP
ii  linux-headers-3.8.0-25                        3.8.0-25.37                                       all          Header files related to Linux kernel version 3.8.0
ii  linux-headers-3.8.0-25-generic                3.8.0-25.37                                       amd64        Linux kernel headers for version 3.8.0 on 64 bit x86 SMP
ii  linux-headers-3.8.0-26                        3.8.0-26.38                                       all          Header files related to Linux kernel version 3.8.0
ii  linux-headers-3.8.0-26-generic                3.8.0-26.38                                       amd64        Linux kernel headers for version 3.8.0 on 64 bit x86 SMP
ii  linux-headers-generic                         3.8.0.26.44                                       amd64        Generic Linux kernel headers
ii  virtualbox                                    4.2.10-dfsg-0ubuntu2                              amd64        x86 virtualization solution - base binaries
ii  virtualbox-dkms                               4.2.10-dfsg-0ubuntu2                              all          x86 virtualization solution - kernel module sources for dkms
ii  virtualbox-qt                                 4.2.10-dfsg-0ubuntu2                              amd64        x86 virtualization solution - Qt based user interface