Overview of the January 2012 Microsoft patches and their status.
| # |
Affected |
Contra Indications - KB |
Known Exploits |
Microsoft rating(**) |
ISC rating(*) |
| clients |
servers |
| MS12-001 |
Vulnerability in Windows Kernel Could Allow Security Feature Bypass |
Windows kernel
CVE-2012-0001 |
KB 2644615 |
This is a security bypass vulnerability. Exploit code likely. No known exploits. |
Severity:Important
Exploitability: 1 |
Important |
Important |
| MS12-002 |
Vulnerability in Windows Object Packager Could Allow Remote Code Execution |
Windows Object Packager
CVE-2012-0009 |
KB 2603381 |
Exploit code likely. No known exploits. |
Severity:Important
Exploitability: 1 |
Critical |
Important |
| MS12-003 |
CSRSS Elevation of Privilege Vulnerability
(Replaces MS11-063) |
Run-Time Subsystem
CVE-2012-0005 |
KB 2646524 |
Elevation of Privilege. No known exploits. Chinese, Japanese, or Korean system locale only. |
Severity:Important
Exploitability: 3,1 |
Important |
Important |
| MS12-004 |
Vulnerabilities in Windows Media Could Allow Remote Code Execution
(Replaces MS10-033) |
Media player
CVE-2012-0003 |
KB 2636391 |
Exploit code likely. No known exploits. |
Severity:Critical
Exploitability: 1,1 |
PATCH NOW! |
Critical |
| MS12-005 |
Vulnerability in Microsoft Windows Could Allow Remote Code Execution |
Windows packager
CVE-2012-0013 |
KB 2584146 |
No known exploits. Exploit code likely. |
Severity:Important
Exploitability: 1,1 |
PATCH NOW! |
Critical |
| MS12-006 |
Vulnerability in SSL/TLS Could Allow Information Disclosure
(Replaces MS10-049)
(Replaces MS10-085)
(Replaces MS10-095) |
Internet Explorer
CVE-2011-3389 |
KB 2643584 |
Publically disclosed. Information disclosure. |
Severity:Important
Exploitability: 3,3 |
Important |
Important |
| MS12-007 |
Vulnerability in AntiXSS Library Could Allow Information Disclosure |
ASP.NET
CVE-2012-0007 |
KB 2607664 |
Information disclosure. |
Severity:Important
Exploitability: 3,3 |
Important |
Important |
We will update issues on this page for about a week or so as they evolve.
We appreciate updates
US based customers can call Microsoft for free patch related support on 1-866-PCSAFETY
(*): ISC rating
- We use 4 levels:
- PATCH NOW:
Typically used where we see immediate danger of exploitation. Typical
environments will want to deploy these patches ASAP. Workarounds are
typically not accepted by users or are not possible. This rating is
often used when typical deployments make it vulnerable and exploits are
being used or easy to obtain or make.
- Critical:
Anything that needs little to become "interesting" for the dark side.
Best approach is to test and deploy ASAP. Workarounds can give more time
to test.
- Important: Things where more testing and other measures can help.
- Less Urgent: Typically we expect the impact if left unpatched to be not that big a deal in the short term. Do not forget them however.
- The difference between the client and server rating is based on
how you use the affected machine. We take into account the typical
client and server deployment in the usage of the machine and the common
measures people typically have in place already. Measures we presume
are simple best practices for servers such as not using outlook, MSIE,
word etc. to do traditional office or leisure work.
- The rating is not a risk analysis as such. It is a rating of
importance of the vulnerability and the perceived or even predicted
threat for affected systems. The rating does not account for the number
of affected systems there are. It is for an affected system in a
typical worst-case role.
- Only the organization itself is in a position to do a full risk
analysis involving the presence (or lack of) affected systems, the
actually implemented measures, the impact on their operation and the
value of the assets involved.
- All patches released by a vendor are important enough to have a
close look if you use the affected systems. There is little incentive
for vendors to publicize patches that do not have some form of risk to
them.
(**): The exploitability rating we show is the worst of them all due
to the too large number of ratings Microsoft assigns to some of the
patches.
Cheers,
Adrien de Beaupré
intru-shun.ca