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    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.

    Published:Dec 10, 2006
    Last Modified:Apr 23, 2026
    EPS:Dec 10, 2006
    EPSS Score:0.02372
    CVSS Score:5

    Affected Products

    Vendor
    Clam Anti-virus
    Product
    Clamav

    Exploits

    http://www.quantenblog.net/security/virus-scanner-bypasshttp://www.quantenblog.net/security/virus-scanner-bypass

    Common Weakness Enumeration

    No CWE recorded yet

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2008-5314 (CVSS 4.3) — Stack consumption vulnerability in libclamav/special.c in ClamAV before 0.94.2 allows remote attackers to caus…
    CVE-2008-5050 (CVSS 9.3) — Off-by-one error in the get_unicode_name function (libclamav/vba_extract.c) in Clam Anti-Virus (ClamAV) before…
    CVE-2008-1389 (CVSS 5) — libclamav/chmunpack.c in the chm-parser in ClamAV before 0.94 allows remote attackers to cause a denial of ser…
    CVE-2008-3215 (CVSS 5) — libclamav/petite.c in ClamAV before 0.93.3 allows remote attackers to cause a denial of service via a malforme…
    CVE-2008-2713 (CVSS 5) — libclamav/petite.c in ClamAV before 0.93.1 allows remote attackers to cause a denial of service via a crafted …
    CVE-2008-1387 (CVSS 4.3) — ClamAV before 0.93 allows remote attackers to cause a denial of service (CPU consumption) via a crafted ARJ ar…
    CVE-2008-1836 (CVSS 4.3) — The rfc2231 function in message.c in libclamav in ClamAV before 0.93 allows remote attackers to cause a denial…
    CVE-2008-1837 (CVSS 5) — libclamunrar in ClamAV before 0.93 allows remote attackers to cause a denial of service (crash) via crafted RA…
    CVE-2008-0314 (CVSS 7.5) — Heap-based buffer overflow in spin.c in libclamav in ClamAV 0.92.1 allows remote attackers to execute arbitrar…
    CVE-2008-1833 (CVSS 7.5) — Heap-based buffer overflow in pe.c in libclamav in ClamAV 0.92.1 allows remote attackers to execute arbitrary …

    References

    http://kolab.org/security/kolab-vendor-notice-14.txt
    http://secunia.com/advisories/23362
    http://secunia.com/advisories/23379
    http://secunia.com/advisories/23411
    http://secunia.com/advisories/23460
    http://www.debian.org/security/2006/dsa-1238
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:230
    http://www.novell.com/linux/security/advisories/2006_78_clamav.html
    http://www.quantenblog.net/security/virus-scanner-bypass
    http://www.securityfocus.com/archive/1/453654/100/0/threaded
    http://www.securityfocus.com/bid/21461
    http://www.vupen.com/english/advisories/2006/4948
    http://www.vupen.com/english/advisories/2006/5113
    http://kolab.org/security/kolab-vendor-notice-14.txt
    http://secunia.com/advisories/23362
    http://secunia.com/advisories/23379
    http://secunia.com/advisories/23411
    http://secunia.com/advisories/23460
    http://www.debian.org/security/2006/dsa-1238
    http://www.mandriva.com/security/advisories?name=MDKSA-2006:230
    http://www.novell.com/linux/security/advisories/2006_78_clamav.html
    http://www.quantenblog.net/security/virus-scanner-bypass
    http://www.securityfocus.com/archive/1/453654/100/0/threaded
    http://www.securityfocus.com/bid/21461
    http://www.vupen.com/english/advisories/2006/4948
    http://www.vupen.com/english/advisories/2006/5113

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High