Multiple vulnerabilities have been identified in Clam AntiVirus (ClamAV), which could be exploited by remote attackers or malware to execute arbitrary code or cause a denial of service.
The first issue is caused by a file descriptor leak error in the "chm_decompress_stream()" [libclamav/chmunpack.c] function, which could be exploited by attackers to crash an affected system via a specially crafted CHM file.
The second vulnerability is caused by a buffer overflow error in the "cab_unstore()" [libclamav/cab.c] function when processing a negative value read from a CAB file, which could be exploited by attackers to crash an affected application or compromise a vulnerable system via a specially crafted CAB file.
Two other file descriptor leak errors have been identified in "libclamav/pdf.c" and "libclamav/lockdb.c".
Credits
Vulnerabilities reported by the vendor and iDefense Labs
ChangeLog
2007-04-13 : Initial release
2007-04-16 : Updated References
Vulnerability Management
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