Samba netdfs_io_dfs_EnumInfo_d Heap Overflow Vulnerability

July 11th, 2007
ZDI-07-030 ZDI-CAN-192

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 DFS RPC interface. When parsing a request to DFSEnum, 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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