• [SECURITY] [DSA 3514-1] samba security update

    From Salvatore Bonaccorso@1:229/2 to All on Sat Mar 12 08:30:02 2016
    From: [email protected]

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    - ------------------------------------------------------------------------- Debian Security Advisory DSA-3514-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso
    March 12, 2016 https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package : samba
    CVE ID : CVE-2015-7560 CVE-2016-0771
    Debian Bug : 812429

    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-2015-7560

    Jeremy Allison of Google, Inc. and the Samba Team discovered that
    Samba incorrectly handles getting and setting ACLs on a symlink
    path. An authenticated malicious client can use SMB1 UNIX extensions
    to create a symlink to a file or directory, and then use non-UNIX
    SMB1 calls to overwrite the contents of the ACL on the file or
    directory linked to.

    CVE-2016-0771

    Garming Sam and Douglas Bagnall of Catalyst IT discovered that Samba
    is vulnerable to an out-of-bounds read issue during DNS TXT record
    handling, if Samba is deployed as an AD DC and chosen to run the
    internal DNS server. A remote attacker can exploit this flaw to
    cause a denial of service (Samba crash), or potentially, to allow
    leakage of memory from the server in the form of a DNS TXT reply.

    Additionally this update includes a fix for a regression introduced due
    to the upstream fix for CVE-2015-5252 in DSA-3433-1 in setups where the
    share path is '/'.

    For the oldstable distribution (wheezy), these problems have been fixed
    in version 2:3.6.6-6+deb7u7. The oldstable distribution (wheezy) is not affected by CVE-2016-0771.

    For the stable distribution (jessie), these problems have been fixed in
    version 2:4.1.17+dfsg-2+deb8u2.

    For the unstable distribution (sid), these problems have been fixed in
    version 2:4.3.6+dfsg-1.

    We recommend that you upgrade your samba packages.

    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: [email protected]
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    --- SoupGate-Win32 v1.05
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