bugtraq - [SECURITY] [DSA 4345-1] samba security update

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Date: Tue, 27 Nov 2018 11:35:08 +0000
From: Salvatore Bonaccorso <carnil@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 4345-1] samba security update

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Debian Security Advisory DSA-4345-1                   security@...ian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
November 27, 2018                     https://www.debian.org/security/faq
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Package        : samba
CVE ID         : CVE-2018-14629 CVE-2018-16841 CVE-2018-16851

Several vulnerabilities have been discovered in Samba, a SMB/CIFS file,
print, and login server for Unix. The Common Vulnerabilities and
Exposures project identifies the following issues:

CVE-2018-14629

    Florian Stuelpner discovered that Samba is vulnerable to
    infinite query recursion caused by CNAME loops, resulting in
    denial of service.

    https://www.samba.org/samba/security/CVE-2018-14629.html

CVE-2018-16841

    Alex MacCuish discovered that a user with a valid certificate or
    smart card can crash the Samba AD DC's KDC when configured to accept
    smart-card authentication.

    https://www.samba.org/samba/security/CVE-2018-16841.html

CVE-2018-16851

    Garming Sam of the Samba Team and Catalyst discovered a NULL pointer
    dereference vulnerability in the Samba AD DC LDAP server allowing a
    user able to read more than 256MB of LDAP entries to crash the Samba
    AD DC's LDAP server.

    https://www.samba.org/samba/security/CVE-2018-16851.html

For the stable distribution (stretch), these problems have been fixed in
version 2:4.5.12+dfsg-2+deb9u4.

We recommend that you upgrade your samba packages.

For the detailed security status of samba please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/samba

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@...ts.debian.org
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