## 2016-09-27, Version 0.12.16 (Maintenance), @rvagg
This is a security release. All Node.js users should consult the security release summary at https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/ for details on patched vulnerabilities.
### Notable changes:
* buffer: Zero-fill excess bytes in new `Buffer` objects created with `Buffer.concat()` while providing a `totalLength` parameter that exceeds the total length of the original `Buffer` objects being concatenated. (Сковорода Никита Андреевич)
* http:
- CVE-2016-5325 - Properly validate for allowable characters in the `reason` argument in `ServerResponse#writeHead()`. Fixes a possible response splitting attack vector. This introduces a new case where `throw` may occur when configuring HTTP responses, users should already be adopting try/catch here. Originally reported independently by Evan Lucas and Romain Gaucher. (Evan Lucas)
- Invalid status codes can no longer be sent. Limited to 3 digit numbers between 100 - 999. Lack of proper validation may also serve as a potential response splitting attack vector. Backported from v4.x. (Brian White)
* openssl:
- Upgrade to 1.0.1u, fixes a number of defects impacting Node.js: CVE-2016-6304 ("OCSP Status Request extension unbounded memory growth", high severity), CVE-2016-2183, CVE-2016-6303, CVE-2016-2178 and CVE-2016-6306.
- Remove support for loading dynamic third-party engine modules. An attacker may be able to hide malicious code to be inserted into Node.js at runtime by masquerading as one of the dynamic engine modules. Originally reported by Ahmed Zaki (Skype). (Ben Noordhuis, Rod Vagg)
* tls: CVE-2016-7099 - Fix invalid wildcard certificate validation check whereby a TLS server may be able to serve an invalid wildcard certificate for its hostname due to improper validation of `*.` in the wildcard string. Originally reported by Alexander Minozhenko and James Bunton (Atlassian). (Ben Noordhuis)
## 2016-06-23, Version 0.12.15 (Maintenance), @rvagg
### Notable changes:
This is a security release. All Node.js users should consult the security release summary at https://nodejs.org/en/blog/vulnerability/june-2016-security-releases/ for details on patched vulnerabilities.
* libuv: (CVE-2014-9748) Fixes a bug in the read/write locks implementation for Windows XP and Windows 2003 that can lead to undefined and potentially unsafe behaviour. More information can be found at https://github.com/libuv/libuv/issues/515 or at https://nodejs.org/en/blog/vulnerability/june-2016-security-releases/.
* V8: (CVE-2016-1669) Fixes a potential Buffer overflow vulnerability discovered in V8, more details can be found in the CVE at https://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-1669 or at https://nodejs.org/en/blog/vulnerability/june-2016-security-releases/.
* openssl: OpenSSL v1.0.1s disables the EXPORT and LOW ciphers as they are obsolete and not considered safe. This release of Node.js turns on `OPENSSL_NO_WEAK_SSL_CIPHERS` to fully disable the 27 ciphers included in these lists which can be used in SSLv3 and higher. Full details can be found in our LTS discussion on the matter (https://github.com/nodejs/LTS/issues/85). (Shigeki Ohtsu) https://github.com/nodejs/node/pull/5712
### Commits
* [4041ea6bc5] - deps: upgrade npm in LTS to 2.15.1 (Forrest L Norvell)
* [a115779026] - deps: Disable EXPORT and LOW ciphers in openssl (Shigeki Ohtsu) https://github.com/nodejs/node/pull/5712
* [ab907eb5a8] - test: skip cluster-disconnect-race on Windows (Gibson Fahnestock) https://github.com/nodejs/node/pull/5621
* [9c06db7444] - test: change tls tests not to use LOW cipher (Shigeki Ohtsu) https://github.com/nodejs/node/pull/5712
* [154098a3dc] - test: bp fix for test-http-get-pipeline-problem.js (Michael Dawson) https://github.com/nodejs/node/pull/3013
* [ff2bed6e86] - win,build: support Visual C++ Build Tools 2015 (João Reis) https://github.com/nodejs/node/pull/5627
<aid="0.12.12"></a>
## 2016-03-08, Version 0.12.12 (LTS), @rvagg
### Notable changes:
* openssl: Fully remove SSLv2 support, the `--enable-ssl2` command line argument will now produce an error. The DROWN Attack (https://drownattack.com/) creates a vulnerability where SSLv2 is enabled by a server, even if a client connection is not using SSLv2. The SSLv2 protocol is widely considered unacceptably broken and should not be supported. More information is available at https://www.openssl.org/news/vulnerabilities.html#2016-0800
Note that the upgrade to OpenSSL 1.0.1s in Node.js v0.12.11 removed internal SSLv2 support. The change in this release was originally intended for v0.12.11. The `--enable-ssl2` command line argument now produces an error rather than being a no-op.
### Commits:
* [dbfc9d9241] - crypto,tls: remove SSLv2 support (Ben Noordhuis) https://github.com/nodejs/node/pull/5536
<aid="0.12.11"></a>
## 2016-03-03, Version 0.12.11 (LTS), @rvagg
### Notable changes:
* http_parser: Update to http-parser 2.3.2 to fix an unintentionally strict limitation of allowable header characters. (James M Snell) https://github.com/nodejs/node/pull/5241
* domains:
- Prevent an exit due to an exception being thrown rather than emitting an 'uncaughtException' event on the `process` object when no error handler is set on the domain within which an error is thrown and an 'uncaughtException' event listener is set on `process`. (Julien Gilli) https://github.com/nodejs/node/pull/3885
- Fix an issue where the process would not abort in the proper function call if an error is thrown within a domain with no error handler and `--abort-on-uncaught-exception` is used. (Julien Gilli) https://github.com/nodejs/node/pull/3885
* openssl: Upgrade from 1.0.1r to 1.0.1s (Ben Noordhuis) https://github.com/nodejs/node/pull/5509
- Fix a double-free defect in parsing malformed DSA keys that may potentially be used for DoS or memory corruption attacks. It is likely to be very difficult to use this defect for a practical attack and is therefore considered low severity for Node.js users. More info is available at https://www.openssl.org/news/vulnerabilities.html#2016-0705
- Fix a defect that can cause memory corruption in certain very rare cases relating to the internal `BN_hex2bn()` and `BN_dec2bn()` functions. It is believed that Node.js is not invoking the code paths that use these functions so practical attacks via Node.js using this defect are _unlikely_ to be possible. More info is available at https://www.openssl.org/news/vulnerabilities.html#2016-0797
- Fix a defect that makes the CacheBleed Attack (https://ssrg.nicta.com.au/projects/TS/cachebleed/) possible. This defect enables attackers to execute side-channel attacks leading to the potential recovery of entire RSA private keys. It only affects the Intel Sandy Bridge (and possibly older) microarchitecture when using hyper-threading. Newer microarchitectures, including Haswell, are unaffected. More info is available at https://www.openssl.org/news/vulnerabilities.html#2016-0702
### Commits:
* [1ab6653db9] - build: update Node.js logo on OSX installer (Rod Vagg) https://github.com/nodejs/node/pull/5401
This is an important security release. All Node.js users should consult the security release summary at nodejs.org for details on patched vulnerabilities.
### Notable changes
* http: fix defects in HTTP header parsing for requests and responses that can allow request smuggling (CVE-2016-2086) or response splitting (CVE-2016-2216). HTTP header parsing now aligns more closely with the HTTP spec including restricting the acceptable characters.
* http-parser: upgrade from 2.3.0 to 2.3.1
* openssl: upgrade from 1.0.1q to 1.0.1r. To mitigate against the Logjam attack, TLS clients now reject Diffie-Hellman handshakes with parameters shorter than 1024-bits, up from the previous limit of 768-bits.
* src:
- introduce new `--security-revert={cvenum}` command line flag for selective reversion of specific CVE fixes
- allow the fix for CVE-2016-2216 to be selectively reverted using `--security-revert=CVE-2016-2216`
* build:
- xz compressed tar files will be made available from nodejs.org for v0.12 builds from v0.12.10 onward
- A headers.tar.gz file will be made available from nodejs.org for v0.12 builds from v0.12.10 onward, a future change to node-gyp will be required to make use of these
### Commits
* [4312848bff] - build: enable xz compressed tarballs where possible (Rod Vagg) https://github.com/nodejs/node/pull/4894
* http: Fix CVE-2015-8027, a bug whereby an HTTP socket may no longer have a parser associated with it but a pipelined request attempts to trigger a pause or resume on the non-existent parser, a potential denial-of-service vulnerability. (Fedor Indutny)
* openssl: Upgrade to 1.0.1q, fixes CVE-2015-3194 "Certificate verify crash with missing PSS parameter", a potential denial-of-service vector for Node.js TLS servers using client certificate authentication; TLS clients are also impacted. Details are available at <http://openssl.org/news/secadv/20151203.txt>. (Ben Noordhuis) https://github.com/nodejs/node/pull/4133
* **deps**: Fixed an out-of-band write in utf8 decoder. **This is an important security update** as it can be used to cause a denial of service attack.
* [[`20d8db1a42`](https://github.com/nodejs/node/commit/20d8db1a42)] - **npm**: upgrade to 2.11.2 [#25517](https://github.com/joyent/node/pull/25517)
* [[`50f961596d`](https://github.com/nodejs/node/commit/50f961596d)] - **uv**: upgrade to 1.6.1 [#25475](https://github.com/joyent/node/pull/25475)
* [[`b81a643f9a`](https://github.com/nodejs/node/commit/b81a643f9a)] - **V8**: avoid deadlock when profiling is active (Dmitri Melikyan) [#25309](https://github.com/joyent/node/pull/25309)
* [[`3122052890`](https://github.com/nodejs/node/commit/3122052890)] - **win**: bring back xp/2k3 support (Bert Belder) [#25367](https://github.com/joyent/node/pull/25367)
<aid="0.12.3"></a>
## 2015-05-13, Version 0.12.3 (Stable)
### Commits
* [[`32166a90cf`](https://github.com/nodejs/node/commit/32166a90cf)] - **V8**: update to 3.28.71.19 [#18206](https://github.com/joyent/node/pull/18206)
* [[`84f1ab6114`](https://github.com/nodejs/node/commit/84f1ab6114)] - **uv**: upgrade to 1.5.0 [#25141](https://github.com/joyent/node/pull/25141)
* [[`03cfbd65fb`](https://github.com/nodejs/node/commit/03cfbd65fb)] - **npm**: upgrade to 2.9.1 [#25289](https://github.com/joyent/node/pull/25289)
* [[`80cdae855f`](https://github.com/nodejs/node/commit/80cdae855f)] - **V8**: don't busy loop in v8 cpu profiler thread (Mike Tunnicliffe) [#25268](https://github.com/joyent/node/pull/25268)
* [[`2a5f4bd7ce`](https://github.com/nodejs/node/commit/2a5f4bd7ce)] - **V8**: fix issue with let bindings in for loops (adamk) [#23948](https://github.com/joyent/node/pull/23948)
* [[`f0ef597e09`](https://github.com/nodejs/node/commit/f0ef597e09)] - **debugger**: don't spawn child process in remote mode (Jackson Tian) [#14172](https://github.com/joyent/node/pull/14172)
* [[`0e392f3b68`](https://github.com/nodejs/node/commit/0e392f3b68)] - **net**: do not set V4MAPPED on FreeBSD (Julien Gilli) [#18204](https://github.com/joyent/node/pull/18204)
* [[`605329d7f7`](https://github.com/nodejs/node/commit/605329d7f7)] - **asyncwrap**: fix constructor condition for early ret (Trevor Norris) [#9146](https://github.com/joyent/node/pull/9146)
* [[`c66f8c21f0`](https://github.com/nodejs/node/commit/c66f8c21f0)] - **path**: refactor for performance and consistency (Nathan Woltman) [#9289](https://github.com/joyent/node/pull/9289)
* [[`9deade4322`](https://github.com/nodejs/node/commit/9deade4322)] - **smalloc**: extend user API (Trevor Norris) [#905](https://github.com/iojs/io.js/pull/905)
* [[`61fe1fe21b`](https://github.com/nodejs/node/commit/61fe1fe21b)] - **src**: fix for SIGINT crash on FreeBSD (Fedor Indutny) [#14184](https://github.com/joyent/node/pull/14184)
