A vulnerability has been identified in Samba, which could be exploited by remote attackers to cause a denial of service or compromise a vulnerable system. This issue is caused by a buffer overflow error in the "receive_smb_raw()" [lib/util_sock.c] function when processing overly large SMB packets received in a client context, which could be exploited by attackers to crash an affected application or execute arbitrary code by tricking a user into connecting to a malicious server (e.g. by following an "smb://" link) or by sending specially crafted packets to an "nmbd" server configured as a local or domain master browser.
Credits
Vulnerability reported by Alin Rad Pop (Secunia Research).
ChangeLog
2008-05-28 : Initial release
Vulnerability Management
Subscribe to FrSIRT VNS and receive real-time e-mail and SMS alerts when new vulnerabilities, exploits, or patches relevant to your systems and network configurations are available.
Feedback
If you have additional information or corrections for this security advisory please submit them via our contact form or by email to updates@frsirt.com.