Heap-based buffer overflow in the array_push function in hashcash.c for Hashcash before 1.21 might allow attackers to execute arbitrary code via crafted entries.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| http://www.vupen.com/english/advisories/2006/2551 | vdb entry vendor advisory |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/27422 | vdb entry |
| http://secunia.com/advisories/20800 | third party advisory vendor advisory |
| http://secunia.com/advisories/21146 | third party advisory vendor advisory |
| http://www.gentoo.org/security/en/glsa/glsa-200606-25.xml | vendor advisory |
| http://www.debian.org/security/2006/dsa-1114 | vendor advisory |
| http://secunia.com/advisories/20846 | third party advisory vendor advisory |
| http://www.hashcash.org/source/CHANGELOG | |
| http://www.securityfocus.com/bid/18659 | vdb entry patch |