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Details |
| Vulnerability name/brief description |
MS11-008 - Vulnerabilities in Microsoft Visio Could Allow Remote Code Execution (2451879)
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| CVE/CAN name |
CVE-2011-0092
CVE-2011-0093
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| Vendor threat level |
Important
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| SophosLabs threat level |
Medium
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| Solution |
MS11-008
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| Vendor description |
This security update resolves two privately reported vulnerabilities in Microsoft Visio. The vulnerabilities could allow remote code execution if a user opens a specially crafted Visio file. An attacker who successfully exploited either of these vulnerabilities could gain the same user rights as the logged-on user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
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| SophosLabs comments |
The two vulnerabilities are:
CVE-2011-0092 - This vulnerability exists in the way memory is cleaned up by Visio after detecting corruption in serialized C++ objects stored in files.
CVE-2011-0093 - This vulnerability exists in the way Visio reads a length value from a specially crafted file without any validation. This results in a buffer overrun in the destination buffer on the heap.
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| SophosLabs testing result |
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| Currently known exploits |
At the time of writing SophosLabs has seen no samples of malware attempting to exploit this vulnerability. Should this situation change samples will be analysed and we will take action as necessary.
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| First sample seen |
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| Discovery date |
2011-02-08
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| Affected software |
Microsoft Visio 2002 Service Pack 2
Microsoft Visio 2003 Service Pack 3
Microsoft Visio 2007 Service Pack 2
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| References |
http://www.microsoft.com/technet/security/bulletin/ms11-008.mspx
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0092
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0093
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| Credits |
MAPP
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| Revisions |
February 8, 2011 - Initial analysis written
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Explanation of terms
Vulnerability Name/Brief Description:
Vendor identifier plus a brief description of the type of attack.
CVE/CAN Name:
Currently assigned CVE name. If a CVE name doesn't exist the CAN name will be used until a CVE has been assigned.
Vendor Threat Level:
Threat level assigned by the vendor
SophosLabs Threat Level:
Threat level assigned by SophosLabs
- LOW RISK - There is little chance of this vulnerability being actively exploited by malware.
- MEDIUM RISK - There is a possibility of this vulnerability being actively exploited by malware.
- HIGH RISK - There is a strong possibility of this vulnerability being actively exploited by malware.
- CRITICAL RISK - This vulnerability will almost certainly be actively exploited by malware.
Solution:
Vendor-supplied Patch identifier and recommended solution, or workaround if applicable.
Vendor Description:
Summary of the cause and potential effect of the vulnerability provided by the vendor.
SophosLabs Comments:
SophosLabs' opinions and observations of the vulnerability in question.
SophosLabs Testing Result:
Details of completed lab testing, if applicable. Please note that the lab test environment may differ significantly from user environments.
Currently Known Exploits:
List of identities for known exploits, if applicable.
First Sample Seen:
Date of the first sample seen by SophosLabs.
Discovery Date:
Date of the earliest known publically disclosed advisory.
Affected Software:
Vulnerable platforms and software versions.