Update now: Millions of users potentially impacted, plus uncounted warez folks
, is said to be due to a lack of full validation of user-supplied data when opening an archive file that could result in a memory access beyond the end of an allocated buffer.
The flaw made it possible for an attacker to construct a RAR file to take advantage of this and use it to execute code in the context of the current process, earning the vulnerability a CVSS severity rating of 7.8 . This issue was discovered by a security researcher identified as “goodbyeselene” working with Trend Micro'son June 8, who reported it to the vendor. The vulnerability was publicly disclosed by ZDI on August 17, but the vendor had already issued an updated version of the application containing a fix by August 2.
That updated version of the application, WinRAR 6.23, also contains fixes for several other flaws, including WinRAR starting on a wrong file if a user double-clicked an item in a specially crafted archive. Other minor changes include the immediate deletion of temporary files created when extracting or testing multiple archives.
Belgique Dernières Nouvelles, Belgique Actualités
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