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slackwareSlackware Linux ProjectSSA-2016-189-01
HistoryJul 07, 2016 - 7:54 p.m.

[slackware-security] samba

2016-07-0719:54:48
Slackware Linux Project
www.slackware.com
16

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

0.005 Low

EPSS

Percentile

76.6%

New samba packages are available for Slackware 14.0, 14.1, 14.2, and -current to
fix security issues.

Here are the details from the Slackware 14.2 ChangeLog:

patches/packages/samba-4.4.5-i586-1_slack14.2.txz: Upgraded.
This release fixes a security issue:
Client side SMB2/3 required signing can be downgraded.
It’s possible for an attacker to downgrade the required signing for an
SMB2/3 client connection, by injecting the SMB2_SESSION_FLAG_IS_GUEST or
SMB2_SESSION_FLAG_IS_NULL flags. This means that the attacker can
impersonate a server being connected to by Samba, and return malicious
results.
For more information, see:
https://vulners.com/cve/CVE-2016-2119
(* 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 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware-14.0/patches/packages/samba-4.2.14-i486-1_slack14.0.txz

Updated package for Slackware x86_64 14.0:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.0/patches/packages/samba-4.2.14-x86_64-1_slack14.0.txz

Updated package for Slackware 14.1:
ftp://ftp.slackware.com/pub/slackware/slackware-14.1/patches/packages/samba-4.2.14-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-4.2.14-x86_64-1_slack14.1.txz

Updated package for Slackware 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware-14.2/patches/packages/samba-4.4.5-i586-1_slack14.2.txz

Updated package for Slackware x86_64 14.2:
ftp://ftp.slackware.com/pub/slackware/slackware64-14.2/patches/packages/samba-4.4.5-x86_64-1_slack14.2.txz

Updated package for Slackware -current:
ftp://ftp.slackware.com/pub/slackware/slackware-current/slackware/n/samba-4.4.5-i586-1.txz

Updated package for Slackware x86_64 -current:
ftp://ftp.slackware.com/pub/slackware/slackware64-current/slackware64/n/samba-4.4.5-x86_64-1.txz

MD5 signatures:

Slackware 14.0 package:
6138a02471f3320cefec87d05bd2a2f4 samba-4.2.14-i486-1_slack14.0.txz

Slackware x86_64 14.0 package:
4b49e85f14da9a3ed170012660796beb samba-4.2.14-x86_64-1_slack14.0.txz

Slackware 14.1 package:
086984352ac698fdc207f09e6ab58977 samba-4.2.14-i486-1_slack14.1.txz

Slackware x86_64 14.1 package:
38624fc438183525e0a81a5975162f88 samba-4.2.14-x86_64-1_slack14.1.txz

Slackware 14.2 package:
bce33ebd9db8bd4f3de06e28195045de samba-4.4.5-i586-1_slack14.2.txz

Slackware x86_64 14.2 package:
63478673374cddf5963fb870253c43b4 samba-4.4.5-x86_64-1_slack14.2.txz

Slackware -current package:
bce33ebd9db8bd4f3de06e28195045de n/samba-4.4.5-i586-1.txz

Slackware x86_64 -current package:
63478673374cddf5963fb870253c43b4 n/samba-4.4.5-x86_64-1.txz

Installation instructions:

Upgrade the package as root:
> upgradepkg samba-4.4.5-i586-1_slack14.2.txz

Then, if Samba is running restart it:

> /etc/rc.d/rc.samba restart

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

0.005 Low

EPSS

Percentile

76.6%