search for: rand_byt

Hi, Yesterday I tried to replace the system openssl in a gentoo system with libressl. With openssh an interesting issue popped up: * RAND_bytes in libressl calls arc4random * arc4random is a compat function both in openssh and libressl * arc4random from openssh uses RAND_bytes So what's happening is a recursion. arc4random wants to use RAND_bytes and RAND_bytes wants to use arc4random. The result is a segfault. OpenSSH is the latest...

Hello, I have been doing some looking at openssl 0.9.7 and openssh3.5p1 and found a minor descrepancy. RAND_bytes() is called around line 69 of openbsd-compat/bsd-arc4random.c. It checks to see if the return is not zero. The RAND_bytes function can also return -1, too. All the code in openssl uses <=0 for the test rather than !. Best Regards, Steve Grubb ________________________________________________...

This morning dovecot died with the following messages in the errorlog. Any solution to this problem? I am using Fedora Core 1 on a SMP i686 box. imap-login: Mar 30 08:08:00 Fatal: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded dovecot: Mar 30 08:08:00 Error: Login process died too early - shutting down dovecot: Mar 30 08:08:00 Error: child 21354 (login) returned error 89...

I've been seeing the Dovecot/SSL/Fedora 1 problem. I have a dovecot server which tends to die at least once a day, with messages like these :- May 24 13:44:44 mail pop3-login: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded May 24 13:44:44 mail dovecot: Login process died too early - shutting down I noticed Timo's email about this at: http://www.dovecot.org/list/dovecot/2004-May/003316.html with the patch that just ignores the r...

Hi, with current test releases SSL doesn't work anymore for me on AIX 4.3 with dovecot-0.99.10-test14. It worked with 0.99.9.1. dovecot: Jun 23 19:42:23 Info: Dovecot starting up imap-login: Jun 23 19:42:25 Fatal: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded imap-login: Jun 23 19:42:25 Fatal: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded imap-login: Jun 23 19:42:25 Fatal: RAND_bytes() failed: error:24064064:random numbe...

Hi, I am happy to (re)send a set of patches for compiling OpenSSH 4.7p1 with FIPS 140-2 OpenSSL. These are based on previously reported patches by Steve Marquess <marquess at ieee.org> and Ben Laurie <ben at algroup.co.uk>, for ver. OpenSSH 3.8. Note that these patches are NOT OFFICIAL, and MAY be used freely by anyone. Issues [partially] handled: SSL FIPS Self test. RC4,

I woke up this morning and my dovecot server had died with the following in the dovecot.log file: pop3-login: Jan 23 10:23:08 Fatal: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded dovecot: Jan 23 10:23:08 Error: Login process died too early - shutting down dovecot: Jan 23 10:23:08 Error: child 16321 (login) returned error 89 How can I find out whats going wrong? -------------- next part --...

...oning here: Define USE_PRNGD, USE_CMDS, or both. Case 1: USE_PRNGD && USE_CMDS: read_seedfile() fetch 96 bytes from PRNGD if successful output(bytes 1-48) RAND_add(bytes 49-96) /* for seedfile */ Otherwise stir_from_commands() stir_from_system() output(RAND_bytes(48)) write_seedfile() Case 2: !USE_PRNGD && USE_CMDS: read_seedfile() stir_from_commands() stir_from_system() output(RAND_bytes(48)) write_seedfile() Case 3: USE_PRNGD && !USE_CMDS: fetch 48 bytes from PRNGD if successful...

Hi, dovecot tries to use OpenSSL's PRNG to generate random numbers if there is no /dev/urandom found. Unfortunately, it is flawed in its present form, since the PRNG is not seeded before RAND_bytes() is called in src/lib/randgen.c (on systems which have /dev/urandom, OpenSSL automatically seeds its PRNG from the urandom device). Here's a patch to address this issue: it tries to seed the PRNG if there is no /dev/urandom present (which is likely the case if dovecot uses OpenSSL's RAN...

Dovecot died twice today. This was in the maillog: Apr 9 17:50:27 ciscy pop3-login: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded Apr 9 17:50:27 ciscy dovecot: Login process died too early - shutting down I think I can cause it to happen reliably and I'm asking for other to test this scenario: Open several terminal windows. In each, t...

...om Feb 4.) > Hi, > Dovecot (pre-compiled version of Fedora Core 1, configured for Maildir) > is running fine for me since a few days. It happened now twice to me > that dovecot died with the following error message in /var/log/maillog: > > Feb 4 11:18:27 hundehuette imap-login: RAND_bytes() failed: > error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not > seeded > Feb 4 11:18:27 hundehuette dovecot: Login process died too early - > shutting down > > As these previous log messages indicate the login was working before > without any problem: > F...

http://dovecot.procontrol.fi/test/ I should have released 0.99.10 already I think.. There's just two annoying problems that I think should be fixed first: - PAM: If user gives a wrong password, dovecot-auth process sleeps for two seconds, blocking everyone else who are trying to authenticate at the time. So using PAM isn't very good idea at the moment. - OpenSSL problems. Are they

...when moving mails from new/ to cur/. - Maildir: synchronization might have sometimes set wrong flags to messages, or crash completely - Maildir: RENAME xx inbox.xx didn't result as uppercased ".INBOX.xx" directory which then couldn't be accessed - Don't crash with RAND_bytes() error messages anymore. This mostly happened with Fedora/RedHat. -------------- next part -------------- A non-text attachment was scrubbed... Name: PGP.sig Type: application/pgp-signature Size: 186 bytes Desc: This is a digitally signed message part URL: <http://dovecot.org/pipermail/dov...

...int arc4random(void) -{ - unsigned int r; - - if (rc4 == NULL) - arc4random_stir(); - - rc4_getbytes(rc4, (unsigned char *)&r, sizeof(r)); - - return(r); -} - -void arc4random_stir(void) -{ - unsigned char rand_buf[32]; - - if (rc4 == NULL) - rc4 = xmalloc(sizeof(*rc4)); - - seed_rng(); - RAND_bytes(rand_buf, sizeof(rand_buf)); - - rc4_key(rc4, rand_buf, sizeof(rand_buf)); - memset(rand_buf, 0, sizeof(rand_buf)); -} -#endif /* !HAVE_ARC4RANDOM */ - #ifndef HAVE_SETPROCTITLE void setproctitle(const char *fmt, ...) { @@ -159,8 +78,13 @@ #endif /* !defined(HAVE_SETEUID) && defined(...

Hi, Dovecot (pre-compiled version of Fedora Core 1, configured for Maildir) is running fine for me since a few days. It happened now twice to me that dovecot died with the following error message in /var/log/maillog: Feb 4 11:18:27 hundehuette imap-login: RAND_bytes() failed: error:24064064:random number generator:SSLEAY_RAND_BYTES:PRNG not seeded Feb 4 11:18:27 hundehuette dovecot: Login process died too early - shutting down As these previous log messages indicate the login was working before without any problem: Feb 4 11:02:37 hundehuette imap-login: L...

...ot.org/rc/ Just a few more changes: - --with-moduledir option to configure - compile fix to Solaris 10 - mbox syncing complains if mbox is modified while we have it locked and something goes wrong (lock settings are wrong) - maildir: RENAME xx inbox.xx makes sure INBOX is uppercased. - "RAND_bytes() failed:" SSL "fix" for fedora/redhat -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 189 bytes Desc: This is a digitally signed message part URL: <http://dovecot.org/pipermail/dovecot/atta...

Hi, There seems to be a problem with the arc4random code on mips/mipsel, producing the following error message: Couldn't obtain random bytes (error 604389476) To quote the bug submitter: "On mips and mipsel, the above error message is frequently seen when calling ssh with a command, usually several times in rapid succession, although that is not always the case. The error appears to

...y is there */ snprintf(filename, sizeof(filename), "%.512s/%s", pw->pw_dir, SSH_USER_DIR); mkdir(filename, 0700); snprintf(filename, sizeof(filename), "%.512s/%s", pw->pw_dir, SSH_PRNG_SEED_FILE); debug("writing PRNG seed to file %.100s", filename); RAND_bytes(seed, sizeof(seed)); /* Don't care if the seed doesn't exist */ prng_check_seedfile(filename); if ((fd = open(filename, O_WRONLY|O_TRUNC|O_CREAT, 0600)) == -1) { debug("WARNING: couldn't access PRNG seedfile %.100s (%.100s)", filename, strerror(errno)); } else...

...b/libcrypto.so.5 #28 0x00000000 in ?? () #29 0x00000000 in ?? () #30 0x2952e080 in ?? () #31 0x0000952a in ?? () #32 0x000036ea in ?? () #33 0x00000000 in ?? () #34 0x2838f08c in ?? () from /lib/libcrypto.so.5 #35 0x29512080 in ?? () #36 0x2952a102 in ?? () #37 0xbf8f5d68 in ?? () #38 0x282f2eac in RAND_bytes () from /lib/libcrypto.so.5 Previous frame identical to this frame (corrupt stack?) (gdb) Thanks, Steve

We've run into an interesting dilemma regarding last log information and ssh 4.2p1. In 3.8, we didn't see this problem, but now has cropped up in 4.2. When a user logs in, sshd seems to call 'last' to get the last log information. 'last' then opens the /var/log/wtmp file and processes the information. On some systems, this file can be quite large, and we're seeing