Trend Micro AntiSpyware and PC-cillin Internet Security vstlib32.dll buffer overflow
| antispyware-vstlib-bo (36144) |  High Risk |
Description:
Trend Micro AntiSpyware and PC-cillin Internet Security are vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the vstlib32.dll library. By creating a file with an overly long path, a remote attacker with write privileges on the adjacent network could overflow a buffer and execute arbitrary code on the system with SYSTEM privileges, if Venus Spy Trap is enabled.
*CVSS:
| Base Score: | 7.7 |
| Access Vector: | Adjacent Network |
| Access Complexity: | Low |
| Authentication: | Single |
| Confidentiality Impact: | Complete |
| Integrity Impact: | Complete |
| Availability Impact: | Complete |
| Temporal Score: | 5.7 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Refer to [Hot Fix]B1028 for patch, upgrade, or suggested workaround information. See References.
References:
- iDefense Labs PUBLIC ADVISORY: 08.21.07: Trend Micro SSAPI Long Path Buffer Overflow Vulnerability.
- [Hot Fix]B1028: The SSAPI module crashes once a folder or file exceeds the max_path character limit.
- BID-25388: Trend Micro Anti-Spyware And PC-cillin SSAPI Engine Local Stack Buffer Overflow Vulnerability
- CVE-2007-3873: Stack-based buffer overflow in vstlib32.dll 1.2.0.1012 in the SSAPI Engine 5.0.0.1066 through 5.2.0.1012 in Trend Micro AntiSpyware 3.5 and PC-Cillin Internet Security 2007 15.0 through 15.3, when the Venus Spy Trap (VST) feature is enabled, allows local users to cause a denial of service (service crash) or execute arbitrary code via a file with a long pathname, which triggers the overflow during a ReadDirectoryChangesW callback notification.
- SA26557: Trend Micro Products SSAPI Module Long Path Processing Buffer Overflow
- SECTRACK ID: 1018592: Trend Micro Anti-Spyware Buffer Overflow in vstlib32.dll Lets Local Users Gain Elevated Privileges
- VUPEN/ADV-2007-2935: Trend Micro Products SSAPI Path Name Handling Buffer Overflow Vulnerability
Platforms Affected:
- Trend Micro AntiSpyware 3.5
- Trend Micro PC-cillin Internet Security 2007 15.0
- Trend Micro PC-cillin Internet Security 2007 15.2
- Trend Micro PC-cillin Internet Security 2007 15.2 Patch
- Trend Micro PC-cillin Internet Security 2007 15.3
Reported:
Aug 20, 2007
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.