Directory traversal vulnerability in clamd in Clam AntiVirus ClamAV before 0.90 allows remote attackers to overwrite arbitrary files via a .. (dot dot) in the id MIME header parameter in a multi-part message.

Clam AntiVirus (ClamAV) 0.88.6 allows remote attackers to cause a denial of service (stack overflow and application crash) by wrapping many layers of multipart/mixed content around a document, a different vulnerability than CVE-2006-5874 and CVE-2006-6406.

Clam AntiVirus (ClamAV) 0.88.6 allows remote attackers to bypass virus detection by inserting invalid characters into base64 encoded content in a multipart/mixed MIME file, as demonstrated with the EICAR test file.

Clam AntiVirus (ClamAV) 0.88 and earlier allows remote attackers to cause a denial of service (crash) via a malformed base64-encoded MIME attachment that triggers a null pointer dereference.

Integer overflow in ClamAV 0.88.1 and 0.88.4, and other versions before 0.88.5, allows remote attackers to cause a denial of service (scanning service crash) and execute arbitrary code via a crafted Portable Executable (PE) file that leads to a heap-based buffer overflow when less memory is allocated than expected.

Unspecified vulnerability in ClamAV before 0.88.5 allows remote attackers to cause a denial of service (scanning service crash) via a crafted Compressed HTML Help (CHM) file that causes ClamAV to "read an invalid memory location."

freshclam in (1) Clam Antivirus (ClamAV) 0.88 and (2) ClamXav 1.0.3h and earlier does not drop privileges before processing the config-file command line option, which allows local users to read portions of arbitrary files when an error message displays the first line of the target file.

Buffer overflow in the get_database function in the HTTP client in Freshclam in ClamAV 0.80 to 0.88.1 might allow remote web servers to execute arbitrary code via long HTTP headers.

Integer overflow in the cli_scanpe function in the PE header parser (libclamav/pe.c) in Clam AntiVirus (ClamAV) before 0.88.1, when ArchiveMaxFileSize is disabled, allows remote attackers to cause a denial of service and possibly execute arbitrary code.

The cli_bitset_set function in libclamav/others.c in Clam AntiVirus (ClamAV) before 0.88.1 allows remote attackers to cause a denial of service via unspecified vectors that trigger an "invalid memory access."