<li><a href="/samba/history/">Release Notes</a>
<li class="navSub">
<ul>
+ <li><a href="samba-4.3.6.html">samba-4.3.6</a></li>
<li><a href="samba-4.3.5.html">samba-4.3.5</a></li>
<li><a href="samba-4.3.4.html">samba-4.3.4</a></li>
<li><a href="samba-4.3.3.html">samba-4.3.3</a></li>
<li><a href="samba-4.3.2.html">samba-4.3.2</a></li>
<li><a href="samba-4.3.1.html">samba-4.3.1</a></li>
<li><a href="samba-4.3.0.html">samba-4.3.0</a></li>
+ <li><a href="samba-4.2.9.html">samba-4.2.9</a></li>
<li><a href="samba-4.2.8.html">samba-4.2.8</a></li>
<li><a href="samba-4.2.7.html">samba-4.2.7</a></li>
<li><a href="samba-4.2.6.html">samba-4.2.6</a></li>
<li><a href="samba-4.2.2.html">samba-4.2.2</a></li>
<li><a href="samba-4.2.1.html">samba-4.2.1</a></li>
<li><a href="samba-4.2.0.html">samba-4.2.0</a></li>
+ <li><a href="samba-4.1.23.html">samba-4.1.23</a></li>
<li><a href="samba-4.1.22.html">samba-4.1.22</a></li>
<li><a href="samba-4.1.21.html">samba-4.1.21</a></li>
<li><a href="samba-4.1.20.html">samba-4.1.20</a></li>
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+<head>
+<title>Samba - Release Notes Archive</title>
+</head>
+
+<body>
+
+ <H2>Samba 4.1.23 Available for Download</H2>
+
+<p>
+<pre>
+ ==============================
+ Release Notes for Samba 4.1.23
+ March 8, 2015
+ ==============================
+
+
+This is a security release in order to address the following CVEs:
+
+o CVE-2015-7560 (Incorrect ACL get/set allowed on symlink path)
+o CVE-2016-0771 (Out-of-bounds read in internal DNS server)
+
+=======
+Details
+=======
+
+o CVE-2015-7560:
+ All versions of Samba from 3.2.0 to 4.4.0rc3 inclusive are vulnerable to
+ a malicious client overwriting the ownership of ACLs using symlinks.
+
+ 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.
+
+o CVE-2016-0771:
+ All versions of Samba from 4.0.0 to 4.4.0rc3 inclusive, when deployed as
+ an AD DC and choose to run the internal DNS server, are vulnerable to an
+ out-of-bounds read issue during DNS TXT record handling caused by users
+ with permission to modify DNS records.
+
+ A malicious client can upload a specially constructed DNS TXT record,
+ resulting in a remote denial-of-service attack. As long as the affected
+ TXT record remains undisturbed in the Samba database, a targeted DNS
+ query may continue to trigger this exploit.
+
+ While unlikely, the out-of-bounds read may bypass safety checks and
+ allow leakage of memory from the server in the form of a DNS TXT reply.
+
+ By default only authenticated accounts can upload DNS records,
+ as "allow dns updates = secure only" is the default.
+ Any other value would allow anonymous clients to trigger this
+ bug, which is a much higher risk.
+
+
+Changes since 4.1.22:
+---------------------
+
+o Jeremy Allison <jra@samba.org>
+ * BUG 11648: CVE-2015-7560: Getting and setting Windows ACLs on symlinks can
+ change permissions on link target.
+
+o Garming Sam <garming@catalyst.net.nz>
+ * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
+ handling.
+
+o Stefan Metzmacher <metze@samba.org>
+ * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
+ handling.
+</pre>
+
+</body>
+</html>
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+<head>
+<title>Samba - Release Notes Archive</title>
+</head>
+
+<body>
+
+ <H2>Samba 4.2.9 Available for Download</H2>
+
+<p>
+<pre>
+ =============================
+ Release Notes for Samba 4.2.9
+ March 8, 2016
+ =============================
+
+
+This is a security release in order to address the following CVEs:
+
+o CVE-2015-7560 (Incorrect ACL get/set allowed on symlink path)
+o CVE-2016-0771 (Out-of-bounds read in internal DNS server)
+
+=======
+Details
+=======
+
+o CVE-2015-7560:
+ All versions of Samba from 3.2.0 to 4.4.0rc3 inclusive are vulnerable to
+ a malicious client overwriting the ownership of ACLs using symlinks.
+
+ 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.
+
+o CVE-2016-0771:
+ All versions of Samba from 4.0.0 to 4.4.0rc3 inclusive, when deployed as
+ an AD DC and choose to run the internal DNS server, are vulnerable to an
+ out-of-bounds read issue during DNS TXT record handling caused by users
+ with permission to modify DNS records.
+
+ A malicious client can upload a specially constructed DNS TXT record,
+ resulting in a remote denial-of-service attack. As long as the affected
+ TXT record remains undisturbed in the Samba database, a targeted DNS
+ query may continue to trigger this exploit.
+
+ While unlikely, the out-of-bounds read may bypass safety checks and
+ allow leakage of memory from the server in the form of a DNS TXT reply.
+
+ By default only authenticated accounts can upload DNS records,
+ as "allow dns updates = secure only" is the default.
+ Any other value would allow anonymous clients to trigger this
+ bug, which is a much higher risk.
+
+
+Changes since 4.2.8:
+--------------------
+
+o Jeremy Allison <jra@samba.org>
+ * BUG 11648: CVE-2015-7560: Getting and setting Windows ACLs on symlinks can
+ change permissions on link target.
+
+o Garming Sam <garming@catalyst.net.nz>
+ * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
+ handling.
+
+o Stefan Metzmacher <metze@samba.org>
+ * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
+ handling.
+</pre>
+
+</body>
+</html>
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<title>Samba 4.3.6 - Release Notes</title>
+</head>
+<body>
+<H2>Samba 4.3.6 Available for Download</H2>
+<p>
+<a href="https://download.samba.org/pub/samba/stable/samba-4.3.6.tar.gz">Samba 4.3.6 (gzipped)</a><br>
+<a href="https://download.samba.org/pub/samba/stable/samba-4.3.6.tar.asc">Signature</a>
+</p>
+<p>
+<a href="https://download.samba.org/pub/samba/patches/samba-4.3.5-4.3.6.diffs.gz">Patch (gzipped) against Samba 4.3.5</a><br>
+<a href="https://download.samba.org/pub/samba/patches/samba-4.3.5-4.3.6.diffs.asc">Signature</a>
+</p>
+<p>
+<pre>
+ =============================
+ Release Notes for Samba 4.3.6
+ March 8, 2016
+ =============================
+
+
+This is a security release in order to address the following CVEs:
+
+o CVE-2015-7560 (Incorrect ACL get/set allowed on symlink path)
+o CVE-2016-0771 (Out-of-bounds read in internal DNS server)
+
+=======
+Details
+=======
+
+o CVE-2015-7560:
+ All versions of Samba from 3.2.0 to 4.4.0rc3 inclusive are vulnerable to
+ a malicious client overwriting the ownership of ACLs using symlinks.
+
+ 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.
+
+o CVE-2016-0771:
+ All versions of Samba from 4.0.0 to 4.4.0rc3 inclusive, when deployed as
+ an AD DC and choose to run the internal DNS server, are vulnerable to an
+ out-of-bounds read issue during DNS TXT record handling caused by users
+ with permission to modify DNS records.
+
+ A malicious client can upload a specially constructed DNS TXT record,
+ resulting in a remote denial-of-service attack. As long as the affected
+ TXT record remains undisturbed in the Samba database, a targeted DNS
+ query may continue to trigger this exploit.
+
+ While unlikely, the out-of-bounds read may bypass safety checks and
+ allow leakage of memory from the server in the form of a DNS TXT reply.
+
+ By default only authenticated accounts can upload DNS records,
+ as "allow dns updates = secure only" is the default.
+ Any other value would allow anonymous clients to trigger this
+ bug, which is a much higher risk.
+
+
+Changes since 4.3.5:
+--------------------
+
+o Jeremy Allison <jra@samba.org>
+ * BUG 11648: CVE-2015-7560: Getting and setting Windows ACLs on symlinks can
+ change permissions on link target.
+
+o Garming Sam <garming@catalyst.net.nz>
+ * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
+ handling.
+
+o Stefan Metzmacher <metze@samba.org>
+ * BUGs 11128, 11686: CVE-2016-0771: Read of uninitialized memory DNS TXT
+ handling.
+
+
+</pre>
+</p>
+</body>
+</html>
<td><em>Details</em></td>
</tr>
+ <tr>
+ <td>08 Mar 2016</td>
+ <td><a href="/samba/ftp/patches/security/samba-4.3.5-security-2016-03-08.patch">
+ patch for Samba 4.3.5</a><br />
+ <a href="/samba/ftp/patches/security/samba-4.2.8-security-2016-03-08.patch">
+ patch for Samba 4.2.8</a><br />
+ <a href="/samba/ftp/patches/security/samba-4.1.22-security-2016-03-08.patch">
+ patch for Samba 4.1.22</a><br />
+ <td>Incorrect ACL get/set allowed on symlink path, Out-of-bounds read in internal DNS server.
+ </td>
+ <td>please refer to the advisories</td>
+ <td><a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7560">CVE-2015-7560</a>,
+ <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0771">CVE-2016-0771</a>,
+ </td>
+ <td><a href="/samba/security/CVE-2015-7560.html">Announcement</a>
+ <a href="/samba/security/CVE-2016-0771.html">Announcement</a>
+ </td>
+ </tr>
+
<tr>
<td>16 Dec 2015</td>
<td><a href="/samba/ftp/patches/security/samba-4.3.2-security-2015-12-16.patch">
--- /dev/null
+<!-- BEGIN: posted_news/20160308-112832.4.3.6.body.html -->
+<h5><a name="4.3.6">08 March 2016</a></h5>
+<p class=headline>Samba 4.3.6, 4.2.9, 4.1.23 and 4.4.0rc4 Security Releases
+Available for Download</p>
+<p>
+These are Security Releases in order to address
+<a href="/samba/security/CVE-2015-7560.html">CVE-2015-7560</a> and
+<a href="/samba/security/CVE-2016-0771.html">CVE-2016-0771</a>.
+</p>
+
+</p>
+<p>
+The uncompressed tarballs have been signed using GnuPG (ID 6568B7EA).
+The 4.3.6 source code can be <a href="https://download.samba.org/pub/samba/stable/samba-4.3.6.tar.gz">downloaded now</a>.
+A <a href="https://download.samba.org/pub/samba/patches/samba-4.3.5-4.3.6.diffs.gz">patch against Samba 4.3.5</a> is also available.
+See <a href="https://www.samba.org/samba/history/samba-4.3.6.html">the release notes for more info</a>.
+<br>
+The 4.2.9 source code can be <a href="https://download.samba.org/pub/samba/stable/samba-4.2.9.tar.gz">downloaded now</a>.
+A <a href="https://download.samba.org/pub/samba/patches/samba-4.2.8-4.2.9.diffs.gz">patch
+against Samba 4.2.8</a> is also available.
+See <a href="https://www.samba.org/samba/history/samba-4.2.9.html">the release notes for more info</a>.
+<br>
+The 4.1.23 source code can be <a href="https://download.samba.org/pub/samba/stable/samba-4.1.23.tar.gz">downloaded now</a>.
+A <a href="https://download.samba.org/pub/samba/patches/samba-4.1.22-4.1.23.diffs.gz">patch
+against Samba 4.1.22</a> is also available.
+See <a href="https://www.samba.org/samba/history/samba-4.1.23.html">the release notes for more info</a>.
+<br>
+The 4.4.0rc4 source code can be <a href="https://download.samba.org/pub/samba/rc/samba-4.4.0rc4.tar.gz">downloaded now</a>.
+See <a href="https://download.samba.org/pub/samba/rc/samba-4.3.0rc4.WHATSNEW.txt">the release notes for more info</a>.
+Please note that this release contains additional patches, not just security patches.
+</p>
+
+<!-- END: posted_news/20160308-112832.4.3.6.body.html -->
--- /dev/null
+<!-- BEGIN: posted_news/20160308-112832.4.3.6.headline.html -->
+<li> 08 March 2016 <a href="#4.3.6">Samba 4.3.6, 4.2.9, 4.1.23 and 4.4.0rc4 Security Releases Available for Download</a></li>
+<!-- END: posted_news/20160308-112832.4.3.6.headline.html -->
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+<head>
+<title>Samba - Security Announcement Archive</title>
+</head>
+
+<body>
+
+ <H2>CVE-2015-7560.html:</H2>
+
+<p>
+<pre>
+===========================================================
+== Subject: Incorrect ACL get/set allowed on symlink path.
+==
+== CVE ID#: CVE-2015-7560
+==
+== Versions: Samba 3.2.0 to 4.4.0rc3
+==
+== Summary: Authenticated client could cause Samba to
+== overwrite ACLs with incorrect owner/group.
+==
+===========================================================
+
+===========
+Description
+===========
+
+All versions of Samba from 3.2.0 to 4.4.0rc3 inclusive are vulnerable to
+a malicious client overwriting the ownership of ACLs using symlinks.
+
+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.
+
+==================
+Patch Availability
+==================
+
+A patch addressing this defect has been posted to
+
+ https://www.samba.org/samba/security/
+
+Additionally, Samba 4.4.0rc4, 4.3.6, 4.2.9 and 4.1.23 have been issued as
+security releases to correct the defect. Patches against older Samba
+versions are available at https://www.samba.org/samba/patches/. Samba
+vendors and administrators running affected versions are advised to
+upgrade or apply the patch as soon as possible.
+
+==========
+Workaround
+==========
+
+Add the parameter:
+
+unix extensions = no
+
+to the [global] section of your smb.conf and restart smbd.
+
+Alternatively, prohibit the use of SMB1 by setting the parameter:
+
+server min protocol = SMB2
+
+to the [global] section of your smb.conf and restart smbd.
+
+=======
+Credits
+=======
+
+This problem was found by Jeremy Allison of Google, Inc. and the Samba
+Team, who also provided the fix.
+</pre>
+</body>
+</html>
--- /dev/null
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
+ "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+
+<head>
+<title>Samba - Security Announcement Archive</title>
+</head>
+
+<body>
+
+ <H2>CVE-2016-0771.html:</H2>
+
+<p>
+<pre>
+===========================================================
+== Subject: Out-of-bounds read in internal DNS server
+==
+== CVE ID#: CVE-2016-0771
+==
+== Versions: Samba 4.0.0 to 4.4.0rc3
+==
+== Summary: Malicious request can cause the Samba internal
+== DNS server to crash or unintentionally return
+== uninitialized memory.
+==
+===========================================================
+
+===========
+Description
+===========
+
+All versions of Samba from 4.0.0 to 4.4.0rc3 inclusive, when deployed as
+an AD DC and choose to run the internal DNS server, are vulnerable to an
+out-of-bounds read issue during DNS TXT record handling caused by users
+with permission to modify DNS records.
+
+A malicious client can upload a specially constructed DNS TXT record,
+resulting in a remote denial-of-service attack. As long as the affected
+TXT record remains undisturbed in the Samba database, a targeted DNS
+query may continue to trigger this exploit.
+
+While unlikely, the out-of-bounds read may bypass safety checks and
+allow leakage of memory from the server in the form of a DNS TXT reply.
+
+By default only authenticated accounts can upload DNS records,
+as "allow dns updates = secure only" is the default.
+Any other value would allow anonymous clients to trigger this
+bug, which is a much higher risk.
+
+==================
+Patch Availability
+==================
+
+A patch addressing this defect has been posted to
+
+ https://www.samba.org/samba/security/
+
+Additionally, Samba 4.4.0rc4, 4.3.6, 4.2.9 and 4.1.23 have been issued as
+security releases to correct the defect. Samba vendors and administrators
+running affected versions are advised to upgrade or apply the patch as
+soon as possible.
+
+==========
+Workaround
+==========
+
+Use of the BIND DNS backend will avoid this issue.
+
+=======
+Credits
+=======
+
+This problem was found by Garming Sam and Douglas Bagnall of Catalyst IT
+(www.catalyst.net.nz), with collaboration from the Samba-Team to provide
+the fix.
+</pre>
+</body>
+</html>
git.samba.org / samba-web.git / commitdiff