OSVDB ID: 17305 Title: Microsoft Windows HTML Help (CHM) File Overflow |
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Description |
A remote overflow exists in Microsoft Windows via the "ms-its" protocol specification. Microsoft Windows fails to check the size field resulting in a heap overflow. Specifying a very high value will cause a buffer overflow. With a specially crafted request, an attacker can cause Internet Explorer to open a malicious .CHM file and cause an excessive memory copy that overwrites portions of memory resulting in a loss of availability and possibly remote code execution. |
Classification |
Location:
Remote / Network Access
Attack Type: Input Manipulation Impact: Loss of Confidentiality, Loss of Integrity Exploit: Exploit Rumored Disclosure: OSVDB Verified, Vendor Verified |
Solution |
Currently, there are no known workarounds or upgrades to correct this issue. However, Microsoft has released a patch (MS05-026) to address this vulnerability. |
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Credit |
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eeye.com - eEye Digital Security