This ‘Patch Tuesday’ for December 2011, sees the release of 14 bulletins addressing 20 vulnerabilities.
Bulletin Breakdown:
The following table summarises the security bulletins for this month in order of severity.
| Bulletin ID | Maximum Severity Rating and Vulnerability Impact | Restart Requirement | Affected Software |
| Bulletin 1 | Critical | Requires restart | Microsoft Windows |
| Remote Code Execution | |||
| Bulletin 2 | Critical | May require restart | Microsoft Windows |
| Remote Code Execution | |||
| Bulletin 3 | Critical | May require restart | Microsoft Windows |
| Remote Code Execution | |||
| Bulletin 4 | Important | Requires restart | Microsoft Windows |
| Information Disclosure | |||
| Bulletin 5 | Important | May Require restart | Microsoft Office |
| Remote Code Execution | |||
| Bulletin 6 | Important | May require restart | Microsoft Office |
| Remote Code Execution | |||
| Bulletin 7 | Important | May require restart | Microsoft Windows |
| Remote Code Execution | |||
| Bulletin 8 | Important | May require restart | Microsoft Office |
| Remote Code Execution | |||
| Bulletin 9 | Important | Requires restart | Microsoft Windows |
| Remote Code Execution | |||
| Bulletin 10 | Important | May require restart | Microsoft Office |
| Remote Code Execution | |||
| Bulletin 11 | Important | Requires restart | Microsoft Windows |
| Elevation of Privilege | |||
| Bulletin 12 | Important | Requires restart | Microsoft Windows |
| Elevation of Privilege | |||
| Bulletin 13 | Important | Requires restart | Microsoft Windows, Internet Explorer |
| Remote Code Execution | |||
| Bulletin 14 | Important | May require restart | Microsoft Office |
| Elevation of Privilege |
We will issue further information on the impact of this month’s updates once they have been released for testing from the 13th of December.
MC.