From wk на gnupg.org Sat Oct 5 10:46:39 2013 From: wk на gnupg.org (Werner Koch) Date: Sat, 05 Oct 2013 10:46:39 +0200 Subject: [gnupg-ru] [Announce] [security fix] GnuPG 2.0.22 released Message-ID: <87eh803y1c.fsf@vigenere.g10code.de> Hello! We are pleased to announce the availability of a new stable GnuPG-2 release: Version 2.0.22. This is a *security fix* release and all users are advised to updated to this version. See below for the impact of the problem. The GNU Privacy Guard (GnuPG) is GNU's tool for secure communication and data storage. It can be used to encrypt data, create digital signatures, help authenticating using Secure Shell and to provide a framework for public key cryptography. It includes an advanced key management facility and is compliant with the OpenPGP and S/MIME standards. GnuPG-2 has a different architecture than GnuPG-1 (e.g. 1.4.14) in that it splits up functionality into several modules. However, both versions may be installed alongside without any conflict. In fact, the gpg version from GnuPG-1 is able to make use of the gpg-agent as included in GnuPG-2 and allows for seamless passphrase caching. The advantage of GnuPG-1 is its smaller size and the lack of dependency on other modules at run and build time. We will keep maintaining GnuPG-1 versions because they are very useful for small systems and for server based applications requiring only OpenPGP support. GnuPG is distributed under the terms of the GNU General Public License (GPLv3+). GnuPG-2 works best on GNU/Linux and *BSD systems but is also available for other Unices, Microsoft Windows and Mac OS X. What's New in 2.0.22 ==================== * Fixed possible infinite recursion in the compressed packet parser. [CVE-2013-4402] * Improved support for some card readers. * Prepared building with the forthcoming Libgcrypt 1.6. * Protect against rogue keyservers sending secret keys. Impact of the security problem ============================== Special crafted input data may be used to cause a denial of service against GPG (GnuPG's OpenPGP part) and some other OpenPGP implementations. All systems using GPG to process incoming data are affected. Taylor R. Campbell invented a neat trick to generate OpenPGP packages to force GPG to recursively parse certain parts of OpenPGP messages ad infinitum. As a workaround a tight "ulimit -v" setting may be used to mitigate the problem. Sample input data to trigger this problem has not yet been seen in the wild. Details of the attack will eventually be published by its inventor. A fixed release of the GnuPG 1.4 series has also been released. An updated vesion of gpg4win will be released next week. Getting the Software ==================== Please follow the instructions found at http://www.gnupg.org/download/ or read on: GnuPG 2.0.22 may be downloaded from one of the GnuPG mirror sites or direct from ftp://ftp.gnupg.org/gcrypt/gnupg/ . The list of mirrors can be found at http://www.gnupg.org/mirrors.html . Note, that GnuPG is not available at ftp.gnu.org. On the FTP server and its mirrors you should find the following files in the gnupg/ directory: gnupg-2.0.22.tar.bz2 (4200k) gnupg-2.0.22.tar.bz2.sig GnuPG source compressed using BZIP2 and OpenPGP signature. gnupg-2.0.20-2.0.22.diff.bz2 (39k) A patch file to upgrade a 2.0.20 GnuPG source tree. This patch does not include updates of the language files. Note, that we don't distribute gzip compressed tarballs for GnuPG-2. Checking the Integrity ====================== In order to check that the version of GnuPG which you are going to install is an original and unmodified one, you can do it in one of the following ways: * If you already have a trusted version of GnuPG installed, you can simply check the supplied signature. For example to check the signature of the file gnupg-2.0.22.tar.bz2 you would use this command: gpg --verify gnupg-2.0.22.tar.bz2.sig This checks whether the signature file matches the source file. You should see a message indicating that the signature is good and made by that signing key. Make sure that you have the right key, either by checking the fingerprint of that key with other sources or by checking that the key has been signed by a trustworthy other key. Note, that you can retrieve the signing key using the command finger wk ,at' g10code.com or using a keyserver like gpg --keyserver keys.gnupg.net --recv-key 4F25E3B6 The distribution key 4F25E3B6 is signed by the well known key 1E42B367. NEVER USE A GNUPG VERSION YOU JUST DOWNLOADED TO CHECK THE INTEGRITY OF THE SOURCE - USE AN EXISTING GNUPG INSTALLATION! * If you are not able to use an old version of GnuPG, you have to verify the SHA-1 checksum. Assuming you downloaded the file gnupg-2.0.22.tar.bz2, you would run the sha1sum command like this: sha1sum gnupg-2.0.22.tar.bz2 and check that the output matches the first line from the following list: 9ba9ee288e9bf813e0f1e25cbe06b58d3072d8b8 gnupg-2.0.22.tar.bz2 6cc51b14ed652fe7eadae25ec7cdaa6f63377525 gnupg-2.0.21-2.0.22.diff.bz2 Documentation ============= The file gnupg.info has the complete user manual of the system. Separate man pages are included as well; however they have not all the details available in the manual. It is also possible to read the complete manual online in HTML format at http://www.gnupg.org/documentation/manuals/gnupg/ or in Portable Document Format at http://www.gnupg.org/documentation/manuals/gnupg.pdf . The chapters on gpg-agent, gpg and gpgsm include information on how to set up the whole thing. You may also want search the GnuPG mailing list archives or ask on the gnupg-users mailing lists for advise on how to solve problems. Many of the new features are around for several years and thus enough public knowledge is already available. Almost all mail clients support GnuPG-2. Mutt users may want to use the configure option "--enable-gpgme" during build time and put a "set use_crypt_gpgme" in ~/.muttrc to enable S/MIME support along with the reworked OpenPGP support. Support ======= Please consult the archive of the gnupg-users mailing list before reporting a bug . We suggest to send bug reports for a new release to this list in favor of filing a bug at . We also have a dedicated service directory at: http://www.gnupg.org/service.html The driving force behind the development of GnuPG is the company of its principal author, Werner Koch. Maintenance and improvement of GnuPG and related software takes up most of their resources. To allow him to continue this work he kindly asks to either purchase a support contract, engage g10 Code for custom enhancements, or to donate money: http://g10code.com/gnupg-donation.html Thanks ====== We have to thank all the people who helped with this release, be it testing, coding, translating, suggesting, auditing, administering the servers, spreading the word, or answering questions on the mailing lists. Happy Hacking, The GnuPG Team -- Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz. ----------- следущая часть ----------- A non-text attachment was scrubbed... Name: отсутствует Type: application/pgp-signature Size: 204 bytes Desc: отсутствует URL: ----------- следущая часть ----------- _______________________________________________ Gnupg-announce mailing list Gnupg-announce на gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-announce From wk на gnupg.org Sat Oct 5 10:56:32 2013 From: wk на gnupg.org (Werner Koch) Date: Sat, 05 Oct 2013 10:56:32 +0200 Subject: [gnupg-ru] [Announce] [security fix] GnuPG 1.4.15 released Message-ID: <877gds3xkv.fsf@vigenere.g10code.de> Hello! We are pleased to announce the availability of a new stable GnuPG-1 release: Version 1.4.15. This is a *security fix* release and all users are advised to updated to this version. See below for the impact of the problem. The GNU Privacy Guard (GnuPG) is GNU's tool for secure communication and data storage. It is a complete and free replacement of PGP and can be used to encrypt data and to create digital signatures. It includes an advanced key management facility, smartcard support and is compliant with the OpenPGP Internet standard as described by RFC-4880. Note that this version is from the GnuPG-1 series and thus smaller than those from the GnuPG-2 series, easier to build, and also better portable to ancient platforms. In contrast to GnuPG-2 (e.g version 2.0.22) it comes with no support for S/MIME, Secure Shell, or other tools useful for desktop environments. Fortunately you may install both versions alongside on the same system without any conflict. What's New =========== * Fixed possible infinite recursion in the compressed packet parser. [CVE-2013-4402] * Protect against rogue keyservers sending secret keys. * Use 2048 bit also as default for batch key generation. * Minor bug fixes. Impact of the security problem ============================== Special crafted input data may be used to cause a denial of service against GPG (GnuPG's OpenPGP part) and some other OpenPGP implementations. All systems using GPG to process incoming data are affected. Taylor R. Campbell invented a neat trick to generate OpenPGP packages to force GPG to recursively parse certain parts of OpenPGP messages ad infinitum. As a workaround a tight "ulimit -v" setting may be used to mitigate the problem. Sample input data to trigger this problem has not yet been seen in the wild. Details of the attack will eventually be published by its inventor. A fixed release of the GnuPG 2.0 series has also been released. Getting the Software ==================== First of all, decide whether you really need GnuPG version 1.4.x - most users are better off with the modern GnuPG 2.0.x version. Then follow the instructions found at http://www.gnupg.org/download/ or read on: GnuPG 1.4.15 may be downloaded from one of the GnuPG mirror sites or direct from ftp://ftp.gnupg.org/gcrypt/ . The list of mirrors can be found at http://www.gnupg.org/mirrors.html . Note, that GnuPG is not available at ftp.gnu.org. On the mirrors you should find the following files in the *gnupg* directory: gnupg-1.4.15.tar.bz2 (3569k) gnupg-1.4.15.tar.bz2.sig GnuPG source compressed using BZIP2 and OpenPGP signature. gnupg-1.4.15.tar.gz (4948k) gnupg-1.4.15.tar.gz.sig GnuPG source compressed using GZIP and OpenPGP signature. gnupg-1.4.14-1.4.15.diff.bz2 (37k) A patch file to upgrade a 1.4.14 GnuPG source tree. This patch does not include updates of the language files. Select one of them. To shorten the download time, you probably want to get the BZIP2 compressed file. Please try another mirror if exceptional your mirror is not yet up to date. In the *binary* directory, you should find these files: gnupg-w32cli-1.4.15.exe (1568k) gnupg-w32cli-1.4.15.exe.sig GnuPG compiled for Microsoft Windows and OpenPGP signature. This is a command line only version; the source files are the same as given above. Note, that this is a minimal installer and unless you are just in need for the gpg binary, you are better off using the full featured installer at http://www.gpg4win.org . An updated version of gpg4win is scheduled for next week. Checking the Integrity ====================== In order to check that the version of GnuPG which you are going to install is an original and unmodified one, you can do it in one of the following ways: * If you already have a trusted version of GnuPG installed, you can simply check the supplied signature. For example to check the signature of the file gnupg-1.4.15.tar.bz2 you would use this command: gpg --verify gnupg-1.4.15.tar.bz2.sig This checks whether the signature file matches the source file. You should see a message indicating that the signature is good and made by that signing key. Make sure that you have the right key, either by checking the fingerprint of that key with other sources or by checking that the key has been signed by a trustworthy other key. Note, that you can retrieve the signing key using the command finger wk ,at' g10code.com | gpg --import or using a keyserver like gpg --recv-key 4F25E3B6 The distribution key 4F25E3B6 is signed by the well known key 1E42B367. If you get an key expired message, you should retrieve a fresh copy as the expiration date might have been prolonged. NEVER USE A GNUPG VERSION YOU JUST DOWNLOADED TO CHECK THE INTEGRITY OF THE SOURCE - USE AN EXISTING GNUPG INSTALLATION! * If you are not able to use an old version of GnuPG, you have to verify the SHA-1 checksum. Assuming you downloaded the file gnupg-1.4.14.tar.bz2, you would run the sha1sum command like this: sha1sum gnupg-1.4.15.tar.bz2 and check that the output matches the first line from the following list: 63ebf0ab375150903c65738070e4105200197fd4 gnupg-1.4.15.tar.bz2 2881c8174c15bb86ecf2e879cb7ca22c91fbcf93 gnupg-1.4.15.tar.gz 0e3a593da55be0fb9a556513ce034e13677e5ebc gnupg-1.4.14-1.4.15.diff.bz2 1adda83f3eda5a2ac6d362c294e31fbb529a03e4 gnupg-w32cli-1.4.15.exe Internationalization ==================== GnuPG comes with support for 29 languages. The Chinese (Simple and Traditional), Czech, Danish, Dutch, French, German, Norwegian, Polish, Romanian, Russian, Spanish, Swedish, Ukrainian, and Turkish translations are close to be complete. Support ======= A listing with commercial support offers for GnuPG is available at: http://www.gnupg.org/service.html The driving force behind the development of GnuPG is the company of its principal author, Werner Koch. Maintenance and improvement of GnuPG and related software take up a most of their resources. To allow them continue their work they ask to either purchase a support contract, engage them for custom enhancements, or to donate money: http://g10code.com/gnupg-donation.html Thanks ====== We have to thank all the people who helped with this release, be it testing, coding, translating, suggesting, auditing, donating money, spreading the word, or answering questions on the mailing lists. Happy Hacking, The GnuPG Team -- Die Gedanken sind frei. Ausnahmen regelt ein Bundesgesetz. ----------- следущая часть ----------- A non-text attachment was scrubbed... Name: отсутствует Type: application/pgp-signature Size: 204 bytes Desc: отсутствует URL: ----------- следущая часть ----------- _______________________________________________ Gnupg-announce mailing list Gnupg-announce на gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-announce