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>> Samba "send_mailslot()" Function Remote Buffer Overflow Vulnerability

Title : Samba "send_mailslot()" Function Remote Buffer Overflow Vulnerability
VUPEN ID : VUPEN/ADV-2007-4153
CVE ID : CVE-2007-6015
Rated as : Moderate Risk 
Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-12-11


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format  Receive VUPEN Security notifications by SMS 

A vulnerability has been identified in Samba, which could be exploited by remote attackers to cause a denial of service or execute arbitrary code. This issue is caused by a buffer overflow error in the "send_mailslot()" function when processing a specially crafted "SAMLOGON" domain logon packet containing a username string placed at an odd offset followed by an overly long GETDC string, which could be exploited by remote attackers to crash or compromise a vulnerable server with the "domain logons" option enabled.

Affected Products

Samba version 3.0.27a and prior

Solution

Upgrade to Samba version 3.0.28 or apply patch for Samba version 3.0.27a :
http://us3.samba.org/samba/ftp/patches/security/samba-3.0.27a-CVE-2007-6015.patch

References

http://www.vupen.com/english/advisories/2007/4153
http://us3.samba.org/samba/security/CVE-2007-6015.html
http://secunia.com/secunia_research/2007-99/advisory

Credits

Vulnerability reported by Alin Rad Pop (Secunia Research).

ChangeLog

2007-12-11 : Initial release

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