RHEL 5 / 6 : samba and samba3x (RHSA-2014:0866)

low Nessus Plugin ID 76447

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Synopsis

The remote Red Hat host is missing one or more security updates.

Description

Updated samba3x and samba packages that fix two security issues are now available for Red Hat Enterprise Linux 5 and 6 respectively.

The Red Hat Security Response Team has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

Samba is an open source implementation of the Server Message Block (SMB) or Common Internet File System (CIFS) protocol, which allows PC-compatible machines to share files, printers, and other information.

A denial of service flaw was found in the way the sys_recvfile() function of nmbd, the NetBIOS message block daemon, processed non-blocking sockets. An attacker could send a specially crafted packet that, when processed, would cause nmbd to enter an infinite loop and consume an excessive amount of CPU time. (CVE-2014-0244)

It was discovered that smbd, the Samba file server daemon, did not properly handle certain files that were stored on the disk and used a valid Unicode character in the file name. An attacker able to send an authenticated non-Unicode request that attempted to read such a file could cause smbd to crash. (CVE-2014-3493)

Red Hat would like to thank Daniel Berteaud of FIREWALL-SERVICES SARL for reporting CVE-2014-0244, and the Samba project for reporting CVE-2014-3493. The Samba project acknowledges Simon Arlott as the original reporter of CVE-2014-3493.

All Samba users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the smb service will be restarted automatically.

Solution

Update the affected packages.

Plugin Details

Severity: Low

ID: 76447

File Name: redhat-RHSA-2014-0866.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 7/10/2014

Updated: 1/14/2021

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Low

Base Score: 3.3

Temporal Score: 2.9

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:redhat:enterprise_linux:samba3x-domainjoin-gui, p-cpe:/a:redhat:enterprise_linux:samba3x-swat, p-cpe:/a:redhat:enterprise_linux:samba-debuginfo, p-cpe:/a:redhat:enterprise_linux:samba-winbind-clients, p-cpe:/a:redhat:enterprise_linux:samba3x-common, p-cpe:/a:redhat:enterprise_linux:samba-winbind-devel, p-cpe:/a:redhat:enterprise_linux:samba3x-debuginfo, p-cpe:/a:redhat:enterprise_linux:samba3x-winbind-devel, p-cpe:/a:redhat:enterprise_linux:samba-domainjoin-gui, p-cpe:/a:redhat:enterprise_linux:samba-swat, p-cpe:/a:redhat:enterprise_linux:samba-common, p-cpe:/a:redhat:enterprise_linux:samba-client, p-cpe:/a:redhat:enterprise_linux:samba-winbind-krb5-locator, cpe:/o:redhat:enterprise_linux:5, p-cpe:/a:redhat:enterprise_linux:samba3x, p-cpe:/a:redhat:enterprise_linux:samba-winbind, p-cpe:/a:redhat:enterprise_linux:libsmbclient, cpe:/o:redhat:enterprise_linux:6.5, p-cpe:/a:redhat:enterprise_linux:samba3x-winbind, p-cpe:/a:redhat:enterprise_linux:samba, p-cpe:/a:redhat:enterprise_linux:samba-doc, p-cpe:/a:redhat:enterprise_linux:samba3x-doc, p-cpe:/a:redhat:enterprise_linux:samba3x-client, p-cpe:/a:redhat:enterprise_linux:libsmbclient-devel

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 7/9/2014

Vulnerability Publication Date: 6/23/2014

Reference Information

CVE: CVE-2014-0244, CVE-2014-3493

BID: 68148, 68150

RHSA: 2014:0866

Detections

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