Some vulnerabilities have been reported in ClamAV, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) An error exists within the OLE2 parser when handling objects with malformed FAT partitions and large property sizes. This can be exploited to cause a DoS due to storage and CPU resource consumption by scanning a specially crafted OLE2 file.
2) An error in the processing of RAR files can be exploited to crash the process via a specially crafted RAR file.
3) A boundary error exists within the file /libclamav/unsp.c, which can be exploited to crash the process via a specially crafted NsPacked file.
4) An incorrect regular expression in libclamav/phishcheck.c can be exploited to cause a DoS by consuming all available CPU resources via a specially crafted file.
Successful exploitation may depend upon the regular expression implementation used.
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Subject: ClamAV Multiple Vulnerabilities
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