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FreeBSD : samba -- potential Denial of Service bug in smbd (f235fe7a-b9ca-11db-bf0f-0013720b182d)

medium Nessus Plugin ID 24826

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The Samba Team reports :

Internally Samba's file server daemon, smbd, implements support for deferred file open calls in an attempt to serve client requests that would otherwise fail due to a share mode violation. When renaming a file under certain circumstances it is possible that the request is never removed from the deferred open queue. smbd will then become stuck is a loop trying to service the open request.

This bug may allow an authenticated user to exhaust resources such as memory and CPU on the server by opening multiple CIFS sessions, each of which will normally spawn a new smbd process, and sending each connection into an infinite loop.

Solution

Update the affected packages.

See Also

https://www.samba.org/samba/security/CVE-2007-0452.html

http://www.nessus.org/u?7f5963a9

Plugin Details

Severity: Medium

ID: 24826

File Name: freebsd_pkg_f235fe7ab9ca11dbbf0f0013720b182d.nasl

Version: 1.13

Type: local

Published: 3/16/2007

Updated: 1/6/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 6.8

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

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:ja-samba, p-cpe:/a:freebsd:freebsd:samba, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Patch Publication Date: 3/16/2007

Vulnerability Publication Date: 2/5/2007

Reference Information

CVE: CVE-2007-0452