Alex Wheeler has reported a vulnerability in Symantec AntiVirus, which can be exploited by malicious people to compromise a vulnerable system.
The vulnerability is caused due to a boundary error in Dec2Rar.dll when copying data based on the length field in the sub-block headers of a RAR archive. This can be exploited to cause a heap-based buffer overflow and may allow arbitrary code execution when a malicious RAR archive is scanned.
The vulnerability has been reported in Dec2Rar.dll version 126.96.36.199 and potentially affects all Symantec products that use the DLL.
Solution: The vendor has issued patches (see patch matrix in vendor advisory).
Provided and/or discovered by: Alex Wheeler
Original Advisory: Symantec:
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