Title: RARLAB WinRAR File Name Potential Buffer Overflow Vulnerability
Severity: HIGH
Description:
RARLAB WinRAR is a compression utility capable of reading and writing files using several different archival formats. It is available for the Microsoft Windows Operating system.
A client-side buffer overflow vulnerability has been reported in the file name processing functionality of WinRAR. This issue is due to a failure of the application to properly validate the length of user-supplied strings prior to copying them into static process buffers.
This issue arises when a user employs the 'Add to archive' functionality and the affected application processes a specially-crafted file name of a file to be compressed. Reports indicate that the file name must contain non-default-codepage and non-ansi characters.
A remote attacker may supply malicious files to a user to be compressed by WinRAR to exploit this issue. A remote compromise may also be possible if the application employs the same routines for decompression, however, this is entirely conjecture and has not been confirmed.
WinRAR 3.51 is reportedly vulnerable. Other versions may be affected as well.
Affected Products:
- RARLAB WinRar 3.51.0
References:
- WinRAR: WinRAR Homepage
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