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FreeBSD : clamav -- cabinet file handling DoS vulnerability (d8e1aadd-ee68-11d9-8310-0001020eed82)

low Nessus Plugin ID 19139

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

An iDEFENSE Security Advisory reports :

Remote exploitation of an input validation error in Clam AntiVirus ClamAV allows attackers to cause a denial of service condition.

The vulnerability specifically exists due to insufficient validation on cabinet file header data. The ENSURE_BITS() macro fails to check for zero length reads, allowing a carefully constructed cabinet file to cause an infinite loop.

ClamAV is used in a number of mail gateway products. Successful exploitation requires an attacker to send a specially constructed CAB file through a mail gateway or personal anti-virus client utilizing the ClamAV scanning engine. The infinate loop will cause the ClamAV software to use all available processor resources, resulting in a denial of service or severe degradation to system performance. Remote exploitation can be achieved by sending a malicious file in an e-mail message or during an HTTP session.

Solution

Update the affected packages.

See Also

https://marc.info/?l=bugtraq&m=112006456809016

http://www.nessus.org/u?0361c6fd

Plugin Details

Severity: Low

ID: 19139

File Name: freebsd_pkg_d8e1aaddee6811d983100001020eed82.nasl

Version: 1.17

Type: local

Published: 7/13/2005

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 2.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:N/A:P

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:clamav, p-cpe:/a:freebsd:freebsd:clamav-devel, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 7/6/2005

Vulnerability Publication Date: 6/29/2005

Reference Information

CVE: CVE-2005-1923