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Samba Multiple Buffer Overflow Vulnerabilities

Secunia Advisory:

SA27450

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Release Date:

2007-11-15

Popularity:

14,427 views

Critical:

Moderately critical

Impact:

System access

Where:

From local network

Solution Status:

Vendor Patch

Software:

Samba 2.x
Samba 3.x

Binary Analysis:

BA285 :: Available for 1 Credit

BA292 :: Available for 1 Credit

Secunia CVSS-2 Score:

Available in Secunia business solutions

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Advisory Content (Page 1 of 3)

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Description:
Some vulnerabilities have been reported in Samba, which can be exploited by malicious people to compromise a vulnerable system.

1) A boundary error exists within the "reply_netbios_packet()" function in nmbd/nmbd_packets.c when sending NetBIOS replies. This can be exploited to cause a stack-based buffer overflow by sending multiple specially crafted WINS "Name Registration" requests followed by a WINS "Name Query" request.

Successful exploitation allows execution of arbitrary code, but requires that Samba is configured to run as a WINS server (the "wins support" option is enabled).

2) A boundary error exists within the processing of GETDC logon requests. This can be exploited to cause a buffer overflow by sending specially crafted GETDC mailslot requests.

Successful exploitation of the vulnerability requires that Samba is configured as a Primary or Backup Domain Controller.

The vulnerabilities are reported in version 3.0.26a. Other versions may also be affected.

Change Page:
[ 1 ] [ 2 ] [ 3 ]

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