Ubuntu 5.04 / 5.10 / 6.06 LTS : samba vulnerability (USN-314-1)

Medium Nessus Plugin ID 27890


The remote Ubuntu host is missing one or more security-related patches.


The Samba security team reported a Denial of Service vulnerability in the handling of information about active connections. In certain circumstances an attacker could continually increase the memory usage of the smbd process by issuing a large number of share connection requests. By draining all available memory, this could be exploited to render the remote Samba server unusable.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.


Update the affected packages.

Plugin Details

Severity: Medium

ID: 27890

File Name: ubuntu_USN-314-1.nasl

Version: $Revision: 1.12 $

Type: local

Agent: unix

Published: 2007/11/10

Modified: 2016/05/27

Dependencies: 12634

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 4.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:ND/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:libpam-smbpass, p-cpe:/a:canonical:ubuntu_linux:libsmbclient, p-cpe:/a:canonical:ubuntu_linux:libsmbclient-dev, p-cpe:/a:canonical:ubuntu_linux:python2.4-samba, p-cpe:/a:canonical:ubuntu_linux:samba, p-cpe:/a:canonical:ubuntu_linux:samba-common, p-cpe:/a:canonical:ubuntu_linux:samba-dbg, p-cpe:/a:canonical:ubuntu_linux:samba-doc, p-cpe:/a:canonical:ubuntu_linux:samba-doc-pdf, p-cpe:/a:canonical:ubuntu_linux:smbclient, p-cpe:/a:canonical:ubuntu_linux:smbfs, p-cpe:/a:canonical:ubuntu_linux:swat, p-cpe:/a:canonical:ubuntu_linux:winbind, cpe:/o:canonical:ubuntu_linux:5.04, cpe:/o:canonical:ubuntu_linux:5.10, cpe:/o:canonical:ubuntu_linux:6.06:-:lts

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2006/07/12

Vulnerability Publication Date: 2006/07/10

Reference Information

CVE: CVE-2006-3403

BID: 18927

OSVDB: 27130

USN: 314-1