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slackwareSlackware Linux ProjectSSA-2015-020-01
HistoryJan 21, 2015 - 3:51 a.m.

[slackware-security] samba

2015-01-2103:51:23
Slackware Linux Project
www.slackware.com
11

8.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:C/I:C/A:C

0.004 Low

EPSS

Percentile

75.2%

New samba packages are available for Slackware 14.1 and -current to
fix a security issue.

Here are the details from the Slackware 14.1 ChangeLog:

patches/packages/samba-4.1.16-i486-1_slack14.1.txz: Upgraded.
This update is a security release in order to address CVE-2014-8143
(Elevation of privilege to Active Directory Domain Controller).
Samba’s AD DC allows the administrator to delegate creation of user or
computer accounts to specific users or groups. However, all released
versions of Samba’s AD DC did not implement the additional required
check on the UF_SERVER_TRUST_ACCOUNT bit in the userAccountControl
attributes. Most Samba deployments are not of the AD Domain Controller,
but are of the classic domain controller, the file server or print server.
Only the Active Directory Domain Controller is affected by this issue.
Additionally, most sites running the AD Domain Controller do not configure
delegation for the creation of user or computer accounts, and so are not
vulnerable to this issue, as no writes are permitted to the
userAccountControl attribute, no matter what the value.
For more information, see:
https://vulners.com/cve/CVE-2014-8143
(* Security fix *)

Where to find the new packages:

Thanks to the friendly folks at the OSU Open Source Lab
(http://osuosl.org) for donating FTP and rsync hosting
to the Slackware project! :-)

Also see the “Get Slack” section on http://slackware.com for
additional mirror sites near you.

Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/samba-4.1.16-i486-1_slack14.1.txz

Updated package for Slackware x86_64 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.1/patches/packages/samba-4.1.16-x86_64-1_slack14.1.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/samba-4.1.16-i486-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/samba-4.1.16-x86_64-1.txz

MD5 signatures:

Slackware 14.1 package:
95e2edc984b8f2e380e653650111798e samba-4.1.16-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
fbd22bcbe0b8d397ee3b8cb13fd06c56 samba-4.1.16-x86_64-1_slack14.1.txz

Slackware -current package:
b5282dadd66bf4be8bb55ff709c3ea36 n/samba-4.1.16-i486-1.txz

Slackware x86_64 -current package:
47aa64495d8454b93019213caeef156c n/samba-4.1.16-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg samba-4.1.16-i486-1_slack14.1.txz

Then, if Samba is running restart it:
> /etc/rc.d/rc.samba restart

8.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

SINGLE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:S/C:C/I:C/A:C

0.004 Low

EPSS

Percentile

75.2%