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| author | Erwin Lansing <erwin@FreeBSD.org> | 2015-07-31 07:03:06 +0000 |
|---|---|---|
| committer | Erwin Lansing <erwin@FreeBSD.org> | 2015-07-31 07:03:06 +0000 |
| commit | b04f5d3d3ff49c604e768add0cf35600b9eee074 (patch) | |
| tree | df671e93c58ebaec722d254bb645d2bea0ae8be7 /doc/arm/notes.html | |
| parent | 7ba7a5de74780dee4ec54bace1ec36427be1d8b8 (diff) | |
Notes
Diffstat (limited to 'doc/arm/notes.html')
| -rw-r--r-- | doc/arm/notes.html | 183 |
1 files changed, 19 insertions, 164 deletions
diff --git a/doc/arm/notes.html b/doc/arm/notes.html index 6839ea631af85..1a647fe01afaa 100644 --- a/doc/arm/notes.html +++ b/doc/arm/notes.html @@ -21,13 +21,18 @@ </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="article" lang="en"><div class="sect1" lang="en"> <div class="titlepage"><div><div><h2 class="title" style="clear: both"> -<a name="id2542126"></a>Release Notes for BIND Version 9.9.7</h2></div></div></div> +<a name="id2542126"></a>Release Notes for BIND Version 9.9.7-P2</h2></div></div></div> <div class="sect2" lang="en"> <div class="titlepage"><div><div><h3 class="title"> <a name="relnotes_intro"></a>Introduction</h3></div></div></div> <p> - This document summarizes changes since the last production release - of BIND on the corresponding major release branch. + This document summarizes changes since BIND 9.9.7. + </p> +<p> + BIND 9.9.7-P2 addresses a security issue described in CVE-2015-5477. + </p> +<p> + BIND 9.9.7-P1 addresses a security issue described in CVE-2015-4620. </p> </div> <div class="sect2" lang="en"> @@ -47,42 +52,23 @@ <div class="itemizedlist"><ul type="disc"> <li> <p> - On servers configured to perform DNSSEC validation using - managed trust anchors (i.e., keys configured explicitly - via <span><strong class="command">managed-keys</strong></span>, or implicitly - via <span><strong class="command">dnssec-validation auto;</strong></span> or - <span><strong class="command">dnssec-lookaside auto;</strong></span>), revoking - a trust anchor and sending a new untrusted replacement - could cause <span><strong class="command">named</strong></span> to crash with an - assertion failure. This could occur in the event of a - botched key rollover, or potentially as a result of a - deliberate attack if the attacker was in position to - monitor the victim's DNS traffic. + A specially crafted query could trigger an assertion failure + in message.c. </p> <p> - This flaw was discovered by Jan-Piet Mens, and is - disclosed in CVE-2015-1349. [RT #38344] + This flaw was discovered by Jonathan Foote, and is disclosed + in CVE-2015-5477. [RT #39795] </p> </li> <li> <p> - A flaw in delegation handling could be exploited to put - <span><strong class="command">named</strong></span> into an infinite loop, in which - each lookup of a name server triggered additional lookups - of more name servers. This has been addressed by placing - limits on the number of levels of recursion - <span><strong class="command">named</strong></span> will allow (default 7), and - on the number of queries that it will send before - terminating a recursive query (default 50). - </p> -<p> - The recursion depth limit is configured via the - <code class="option">max-recursion-depth</code> option, and the query limit - via the <code class="option">max-recursion-queries</code> option. + On servers configured to perform DNSSEC validation, an + assertion failure could be triggered on answers from + a specially configured server. </p> <p> - The flaw was discovered by Florian Maury of ANSSI, and is - disclosed in CVE-2014-8500. [RT #37580] + This flaw was discovered by Breno Silveira Soares, and is + disclosed in CVE-2015-4620. [RT #39795] </p> </li> </ul></div> @@ -95,143 +81,12 @@ <div class="sect2" lang="en"> <div class="titlepage"><div><div><h3 class="title"> <a name="relnotes_changes"></a>Feature Changes</h3></div></div></div> -<div class="itemizedlist"><ul type="disc"> -<li><p> - NXDOMAIN responses to queries of type DS are now cached separately - from those for other types. This helps when using "grafted" zones - of type forward, for which the parent zone does not contain a - delegation, such as local top-level domains. Previously a query - of type DS for such a zone could cause the zone apex to be cached - as NXDOMAIN, blocking all subsequent queries. (Note: This - change is only helpful when DNSSEC validation is not enabled. - "Grafted" zones without a delegation in the parent are not a - recommended configuration.) - </p></li> -<li><p> - NOTIFY messages that are sent because a zone has been updated - are now given priority above NOTIFY messages that were scheduled - when the server started up. This should mitigate delays in zone - propagation when servers are restarted frequently. - </p></li> -<li><p> - Errors reported when running <span><strong class="command">rndc addzone</strong></span> - (e.g., when a zone file cannot be loaded) have been clarified - to make it easier to diagnose problems. - </p></li> -<li><p> - Added support for OPENPGPKEY type. - </p></li> -<li><p> - When encountering an authoritative name server whose name is - an alias pointing to another name, the resolver treats - this as an error and skips to the next server. Previously - this happened silently; now the error will be logged to - the newly-created "cname" log category. - </p></li> -<li><p> - If named is not configured to validate the answer then - allow fallback to plain DNS on timeout even when we know - the server supports EDNS. This will allow the server to - potentially resolve signed queries when TCP is being - blocked. - </p></li> -</ul></div> +<div class="itemizedlist"><ul type="disc"><li><p>None</p></li></ul></div> </div> <div class="sect2" lang="en"> <div class="titlepage"><div><div><h3 class="title"> <a name="relnotes_bugs"></a>Bug Fixes</h3></div></div></div> -<div class="itemizedlist"><ul type="disc"> -<li><p> - <span><strong class="command">dig</strong></span>, <span><strong class="command">host</strong></span> and - <span><strong class="command">nslookup</strong></span> aborted when encountering - a name which, after appending search list elements, - exceeded 255 bytes. Such names are now skipped, but - processing of other names will continue. [RT #36892] - </p></li> -<li><p> - The error message generated when - <span><strong class="command">named-checkzone</strong></span> or - <span><strong class="command">named-checkconf -z</strong></span> encounters a - <code class="option">$TTL</code> directive without a value has - been clarified. [RT #37138] - </p></li> -<li><p> - Semicolon characters (;) included in TXT records were - incorrectly escaped with a backslash when the record was - displayed as text. This is actually only necessary when there - are no quotation marks. [RT #37159] - </p></li> -<li><p> - When files opened for writing by <span><strong class="command">named</strong></span>, - such as zone journal files, were referenced more than once - in <code class="filename">named.conf</code>, it could lead to file - corruption as multiple threads wrote to the same file. This - is now detected when loading <code class="filename">named.conf</code> - and reported as an error. [RT #37172] - </p></li> -<li><p> - <span><strong class="command">dnssec-keygen -S</strong></span> failed to generate successor - keys for some algorithm types (including ECDSA and GOST) due to - a difference in the content of private key files. This has been - corrected. [RT #37183] - </p></li> -<li><p> - UPDATE messages that arrived too soon after - an <span><strong class="command">rndc thaw</strong></span> could be lost. [RT #37233] - </p></li> -<li><p> - Forwarding of UPDATE messages did not work when they were - signed with SIG(0); they resulted in a BADSIG response code. - [RT #37216] - </p></li> -<li><p> - When checking for updates to trust anchors listed in - <code class="option">managed-keys</code>, <span><strong class="command">named</strong></span> - now revalidates keys based on the current set of - active trust anchors, without relying on any cached - record of previous validation. [RT #37506] - </p></li> -<li><p> - When NXDOMAIN redirection is in use, queries for a name - that is present in the redirection zone but a type that - is not present will now return NOERROR instead of NXDOMAIN. - </p></li> -<li><p> - When a zone contained a delegation to an IPv6 name server - but not an IPv4 name server, it was possible for a memory - reference to be left un-freed. This caused an assertion - failure on server shutdown, but was otherwise harmless. - [RT #37796] - </p></li> -<li><p> - Due to an inadvertent removal of code in the previous - release, when <span><strong class="command">named</strong></span> encountered an - authoritative name server which dropped all EDNS queries, - it did not always try plain DNS. This has been corrected. - [RT #37965] - </p></li> -<li><p> - A regression caused nsupdate to use the default recursive servers - rather than the SOA MNAME server when sending the UPDATE. - </p></li> -<li><p> - Adjusted max-recursion-queries to better accommodate empty - caches. - </p></li> -<li><p> - Built-in "empty" zones did not correctly inherit the - "allow-transfer" ACL from the options or view. [RT #38310] - </p></li> -<li><p> - A mutex leak was fixed that could cause <span><strong class="command">named</strong></span> - processes to grow to very large sizes. [RT #38454] - </p></li> -<li><p> - Fixed some bugs in RFC 5011 trust anchor management, - including a memory leak and a possible loss of state - information.[RT #38458] - </p></li> -</ul></div> +<div class="itemizedlist"><ul type="disc"><li><p>None</p></li></ul></div> </div> <div class="sect2" lang="en"> <div class="titlepage"><div><div><h3 class="title"> |