ClamAV base64-UUEncoded security bypass
| clamavs-base64uue-security-bypass (39337) |  Medium Risk |
Description:
Clam AntiVirus (ClamAV) could allow a remote attacker to bypass security restrictions, caused by the failure to detect base64-UUEncoded files. By sending specially-crafted base64-UUEncoded content, a remote attacker could exploit this vulnerability to bypass the scanning function.
Platforms Affected:
- Clam Anti-Virus, ClamAV 0.92
- MandrakeSoft, Mandrake Linux 2007.1
- MandrakeSoft, Mandrake Linux 2007.1 X86_64
- MandrakeSoft, Mandrake Linux 2008.0 X86_64
- MandrakeSoft, Mandrake Linux 2008.0
- MandrakeSoft, Mandrake Linux 2008.1 X86_64
- MandrakeSoft, Mandrake Linux 2008.1
- MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
- MandrakeSoft, Mandrake Linux Corporate Server 3.0
- MandrakeSoft, Mandrake Linux Corporate Server 4.0
- MandrakeSoft, Mandrake Linux Corporate Server 4.0 X86_64
- Novell, Linux POS 9
- Novell, Open Enterprise Server
- Novell, Open Enterprise Server
- Novell, OpenSUSE 10.2
- Novell, OpenSUSE 10.3
- Novell, SLE SDK 10 SP1
- Novell, SUSE Linux Enterprise Server 10 SP1
- Novell, SUSE Linux Enterprise Server 10
- SuSE, SLE SDK 10
- SuSE, SuSE SLES 9
Remedy:
Apply the appropriate patch for your system. See References.
Consequences:
Bypass Security
References:
- Clam AntiVirus Web site, Clam AntiVirus at http://www.clamav.net/.
- Clam AntiVirus Web site, Clam AntiVirus Download at http://www.clamav.net/download/sources.
- Full-Disclosure Mailing List, Sun, 30 Dec 2007 01:06:04 +0100, TK53 Advisory #2: Multiple vulnerabilities in ClamAV at http://seclists.org/fulldisclosure/2007/Dec/0625.html.
- BID-27064: ClamAV Multiple Insecure File Handling and Scanner Bypass Vulnerabilities
- CVE-2007-6596: ClamAV 0.92 does not recognize Base64 UUEncoded archives, which allows remote attackers to bypass the scanner via a Base64-UUEncoded file.
- MDVSA-2008:088: Updated clamav packages fix multiple vulnerabilities
- SECTRACK ID: 1019148: Clam AntiVirus Unsafe File Access Lets Local Users Gain Elevated Privileges
- SUSE-SA:2008:024: clamav 0.93 security update
Reported:
Dec 29, 2007
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