FreeBSD : hashcash -- heap overflow vulnerability (2be7c122-0614-11db-9156-000e0c2e438a)

High Nessus Plugin ID 21768


The remote FreeBSD host is missing a security-related update.


Andreas Seltenreich reports that hashcash is prone to a heap overflow vulnerability. This vulnerability is caused by improper checking of memory allocations within the 'array_push()' function. An attacker could trigger this vulnerability by passing a lot of '-r' or '-j' flags from the command line, this only applies when the application is configured to allow command line options, or by passing a lot of resource names when the application was started with the '-m' flag set. This could lead to a Denial or Service or could allow remote access to the targeted system.


Update the affected package.

See Also

Plugin Details

Severity: High

ID: 21768

File Name: freebsd_pkg_2be7c122061411db9156000e0c2e438a.nasl

Version: $Revision: 1.9 $

Type: local

Published: 2006/06/28

Modified: 2013/06/21

Dependencies: 12634

Risk Information

Risk Factor: High

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:hashcash, cpe:/o:freebsd:freebsd

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

Patch Publication Date: 2006/06/27

Vulnerability Publication Date: 2006/06/27

Reference Information

Secunia: 20800