Executive Summary

Summary
Titlesamba security and bug fix update
Informations
NameRHSA-2017:1265First vendor Publication2017-05-22
VendorRedHatLast vendor Modification2017-05-22
Severity (Vendor) N/ARevision01

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:P/I:P/A:P)
Cvss Base Score6Attack RangeNetwork
Cvss Impact Score6.4Attack ComplexityMedium
Cvss Expoit Score6.8AuthenticationRequires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for samba is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Server (v. 7) - aarch64, noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - aarch64, noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Resilient Storage (v. 7) - x86_64 Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64

3. Description:

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

Security Fix(es):

* It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users. (CVE-2016-2125)

* A flaw was found in the way Samba handled PAC (Privilege Attribute Certificate) checksums. A remote, authenticated attacker could use this flaw to crash the winbindd process. (CVE-2016-2126)

* A race condition was found in samba server. A malicious samba client could use this flaw to access files and directories, in areas of the server file system not exported under the share definitions. (CVE-2017-2619)

Red Hat would like to thank the Samba project for reporting CVE-2017-2619. Upstream acknowledges Jann Horn (Google) as the original reporter of CVE-2017-2619.

4. Solution:

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing this update, the smb service will be restarted automatically.

5. Bugs fixed (https://bugzilla.redhat.com/):

1403114 - CVE-2016-2125 samba: Unconditional privilege delegation to Kerberos servers in trusted realms 1403115 - CVE-2016-2126 samba: Flaws in Kerberos PAC validation can trigger privilege elevation 1429472 - CVE-2017-2619 samba: symlink race permits opening files outside share directory

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2017-1265.html

CWE : Common Weakness Enumeration

%idName
33 %CWE-362Race Condition
33 %CWE-264Permissions, Privileges, and Access Controls
33 %CWE-59Improper Link Resolution Before File Access ('Link Following')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application104
Os1
Os2

Nessus® Vulnerability Scanner

DateDescription
2018-11-27Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZLSA-2017-2789.nasl - Type : ACT_GATHER_INFO
2017-09-27Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2017-2789.nasl - Type : ACT_GATHER_INFO
2017-09-27Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20170921_samba_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2017-09-25Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-2778.nasl - Type : ACT_GATHER_INFO
2017-09-22Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2017-2789.nasl - Type : ACT_GATHER_INFO
2017-09-22Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-2789.nasl - Type : ACT_GATHER_INFO
2017-08-03Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-2338.nasl - Type : ACT_GATHER_INFO
2017-07-17Name : The remote Fedora host is missing a security update.
File : fedora_2017-fb9ed95cf3.nasl - Type : ACT_GATHER_INFO
2017-07-13Name : The remote Virtuozzo host is missing a security update.
File : Virtuozzo_VZLSA-2017-1265.nasl - Type : ACT_GATHER_INFO
2017-06-09Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2017-1104.nasl - Type : ACT_GATHER_INFO
2017-06-09Name : The remote EulerOS host is missing multiple security updates.
File : EulerOS_SA-2017-1105.nasl - Type : ACT_GATHER_INFO
2017-06-01Name : The remote Amazon Linux AMI host is missing a security update.
File : ala_ALAS-2017-834.nasl - Type : ACT_GATHER_INFO
2017-05-23Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2017-1265.nasl - Type : ACT_GATHER_INFO
2017-05-23Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2017-1265.nasl - Type : ACT_GATHER_INFO
2017-05-23Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-1265.nasl - Type : ACT_GATHER_INFO
2017-05-23Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20170522_samba_on_SL7_x.nasl - Type : ACT_GATHER_INFO
2017-05-09Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-1216-1.nasl - Type : ACT_GATHER_INFO
2017-04-26Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-3267-1.nasl - Type : ACT_GATHER_INFO
2017-04-17Name : The remote Fedora host is missing a security update.
File : fedora_2017-97fb93e1d1.nasl - Type : ACT_GATHER_INFO
2017-04-12Name : The remote Debian host is missing a security update.
File : debian_DLA-894.nasl - Type : ACT_GATHER_INFO
2017-04-06Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-437.nasl - Type : ACT_GATHER_INFO
2017-04-06Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-439.nasl - Type : ACT_GATHER_INFO
2017-04-06Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20170321_samba4_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2017-04-06Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20170321_samba_on_SL6_x.nasl - Type : ACT_GATHER_INFO
2017-04-05Name : The remote Samba server is affected by an information disclosure vulnerability.
File : samba_4_6_1.nasl - Type : ACT_GATHER_INFO
2017-04-03Name : The remote Fedora host is missing a security update.
File : fedora_2017-c22a1dbe8b.nasl - Type : ACT_GATHER_INFO
2017-03-30Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2017-0662.nasl - Type : ACT_GATHER_INFO
2017-03-30Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2017-0744.nasl - Type : ACT_GATHER_INFO
2017-03-30Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0841-1.nasl - Type : ACT_GATHER_INFO
2017-03-30Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0858-1.nasl - Type : ACT_GATHER_INFO
2017-03-30Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0859-1.nasl - Type : ACT_GATHER_INFO
2017-03-30Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2017-0862-1.nasl - Type : ACT_GATHER_INFO
2017-03-27Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2017-0662.nasl - Type : ACT_GATHER_INFO
2017-03-27Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2017-0744.nasl - Type : ACT_GATHER_INFO
2017-03-27Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_2826317b10ec11e7944e000c292e4fd8.nasl - Type : ACT_GATHER_INFO
2017-03-24Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2017-082-02.nasl - Type : ACT_GATHER_INFO
2017-03-24Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3816.nasl - Type : ACT_GATHER_INFO
2017-03-24Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0494.nasl - Type : ACT_GATHER_INFO
2017-03-24Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0495.nasl - Type : ACT_GATHER_INFO
2017-03-24Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-3242-1.nasl - Type : ACT_GATHER_INFO
2017-03-22Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0662.nasl - Type : ACT_GATHER_INFO
2017-03-22Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2017-0744.nasl - Type : ACT_GATHER_INFO
2017-01-10Name : The remote Fedora host is missing a security update.
File : fedora_2017-d0a537062c.nasl - Type : ACT_GATHER_INFO
2017-01-05Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-11.nasl - Type : ACT_GATHER_INFO
2017-01-05Name : The remote openSUSE host is missing a security update.
File : openSUSE-2017-12.nasl - Type : ACT_GATHER_INFO
2017-01-03Name : The remote Debian host is missing a security update.
File : debian_DLA-776.nasl - Type : ACT_GATHER_INFO
2017-01-03Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-3298-1.nasl - Type : ACT_GATHER_INFO
2017-01-03Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-3299-1.nasl - Type : ACT_GATHER_INFO
2017-01-03Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-3300-1.nasl - Type : ACT_GATHER_INFO
2016-12-29Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2016-363-02.nasl - Type : ACT_GATHER_INFO
2016-12-28Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_e4bc323fcc7311e6b704000c292e4fd8.nasl - Type : ACT_GATHER_INFO
2016-12-27Name : The remote Fedora host is missing a security update.
File : fedora_2016-364f61377b.nasl - Type : ACT_GATHER_INFO
2016-12-27Name : The remote Samba server is affected by multiple vulnerabilities.
File : samba_4_5_3.nasl - Type : ACT_GATHER_INFO
2016-12-27Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-3271-1.nasl - Type : ACT_GATHER_INFO
2016-12-27Name : The remote SUSE host is missing one or more security updates.
File : suse_SU-2016-3272-1.nasl - Type : ACT_GATHER_INFO
2016-12-20Name : The remote Debian host is missing a security-related update.
File : debian_DSA-3740.nasl - Type : ACT_GATHER_INFO
2016-12-20Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-3158-1.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
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DateInformations
2018-11-01 13:23:07
  • Multiple Updates
2018-04-11 21:21:54
  • Multiple Updates
2018-03-14 09:21:30
  • Multiple Updates
2017-08-07 21:24:45
  • Multiple Updates
2017-07-14 13:24:51
  • Multiple Updates
2017-05-24 13:25:25
  • Multiple Updates
2017-05-22 13:23:17
  • First insertion