Samba smb_io_notify_option_type_data Heap Overflow Vulnerability

July 11th, 2007
ZDI-07-031 ZDI-CAN-193

CVE ID

CVE-2007-2446

CVSS Score

None None

Affected Vendors

Samba

Affected Products

3.0.x

Vulnerability Details

This vulnerability allows attackers to execute arbitrary code on vulnerable installations of Samba. User interaction is not required to exploit this vulnerability.

The specific flaw exists in the parsing of RPC requests to the SPOOLSS RPC interface. When parsing a request to RFNPCNEX, heap allocation is calculated based on user input. By specifying invalid values, heap blocks can be overwritten leading to remote code execution.

Additional Details

Samba has issued an update to correct this vulnerability. More details can be found at:
http://us1.samba.org/samba/security/CVE-2007-2446.html

Disclosure Timeline

  • 2007-04-25 - Vulnerability reported to vendor
  • 2007-07-11 - Coordinated public release of advisory

Credit

Anonymous

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