Samba lsa_io_trans_names Heap Overflow VulnerabilityZDI-07-033: July 11th, 2007
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 5349. For further product information on the TippingPoint IPS:
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 LSA RPC interface. When parsing a request to LsarLookupSids/LsarLookupSids2, heap allocation is calculated based on user input. By specifying invalid values, heap blocks can be overwritten leading to remote code execution.
Vendor ResponseSamba has issued an update to correct this vulnerability. More details can be found at:
2007-05-04 - Vulnerability reported to vendor
2007-07-11 - Coordinated public release of advisory
CreditThis vulnerability was discovered by: