Security update for ntp

This update for ntp fixes the following issues:

- Update to 4.2.8p7 (boo#977446):
* CVE-2016-1547, boo#977459:
Validate crypto-NAKs, AKA: CRYPTO-NAK DoS.
* CVE-2016-1548, boo#977461: Interleave-pivot
* CVE-2016-1549, boo#977451:
Sybil vulnerability: ephemeral association attack.
* CVE-2016-1550, boo#977464: Improve NTP security against buffer
comparison timing attacks.
* CVE-2016-1551, boo#977450:
Refclock impersonation vulnerability
* CVE-2016-2516, boo#977452: Duplicate IPs on unconfig
directives will cause an assertion botch in ntpd.
* CVE-2016-2517, boo#977455: remote configuration trustedkey/
requestkey/controlkey values are not properly validated.
* CVE-2016-2518, boo#977457: Crafted addpeer with hmode > 7
causes array wraparound with MATCH_ASSOC.
* CVE-2016-2519, boo#977458: ctl_getitem() return value not
always checked.
* integrate ntp-fork.patch
* Improve the fixes for:
CVE-2015-7704, CVE-2015-7705, CVE-2015-7974
- Restrict the parser in the startup script to the first
occurrance of "keys" and "controlkey" in ntp.conf (boo#957226).

- Enable compile-time support for MS-SNTP (--enable-ntp-signd).
This replaces the w32 patches in 4.2.4 that added the authreg
directive. (fate#320758).
- Fix ntp-sntp-dst.patch (boo#975496).
- Call /usr/sbin/sntp with full path to synchronize in start-ntpd.
When run as cron job, /usr/sbin/ is not in the path, which caused
the synchronization to fail. (boo#962318)
- Speedup ntpq (boo#782060, ntp-speedup-ntpq.patch).
- Sync service files with openSUSE Factory.

- Fix the TZ offset output of sntp during DST (boo#951559).

- Add ntp-fork.patch and build with threads disabled to allow
name resolution even when running chrooted.

- Update to 4.2.8p6:
* CVE-2015-8158, boo#962966: Potential Infinite Loop in ntpq.
* CVE-2015-8138, boo#963002: origin: Zero Origin Timestamp
Bypass.
* CVE-2015-7979, boo#962784: Off-path Denial of Service (DoS)
attack on authenticated broadcast mode.
* CVE-2015-7978, boo#963000: Stack exhaustion in recursive
traversal of restriction list.
* CVE-2015-7977, boo#962970: reslist NULL pointer dereference.
* CVE-2015-7976, boo#962802: ntpq saveconfig command allows
dangerous characters in filenames.
* CVE-2015-7975, boo#962988: nextvar() missing length check.
* CVE-2015-7974, boo#962960: Skeleton Key: Missing key check
allows impersonation between authenticated peers.
* CVE-2015-7973, boo#962995: Deja Vu: Replay attack on
authenticated broadcast mode.
* CVE-2015-8140: ntpq vulnerable to replay attacks.
* CVE-2015-8139: Origin Leak: ntpq and ntpdc, disclose origin.
* CVE-2015-5300, boo#951629: Small-step/Big-step.
- Add /var/db/ntp-kod (boo#916617).
- Add ntp-ENOBUFS.patch to limit a warning that might happen
quite a lot on loaded systems (boo#956773).

- add ntp.bug2965.diff (boo#954982)
* fixes regression in 4.2.8p4 update

- Update to 4.2.8p4 to fix several security issues (boo#951608):
* CVE-2015-7871: NAK to the Future: Symmetric association
authentication bypass via crypto-NAK
* CVE-2015-7855: decodenetnum() will ASSERT botch instead of
returning FAIL on some bogus values
* CVE-2015-7854: Password Length Memory Corruption Vulnerability
* CVE-2015-7853: Invalid length data provided by a custom
refclock driver could cause a buffer overflow
* CVE-2015-7852 ntpq atoascii() Memory Corruption Vulnerability
* CVE-2015-7851 saveconfig Directory Traversal Vulnerability
* CVE-2015-7850 remote config logfile-keyfile
* CVE-2015-7849 trusted key use-after-free
* CVE-2015-7848 mode 7 loop counter underrun
* CVE-2015-7701 Slow memory leak in CRYPTO_ASSOC
* CVE-2015-7703 configuration directives "pidfile" and
"driftfile" should only be allowed locally
* CVE-2015-7704, CVE-2015-7705 Clients that receive a KoD should
validate the origin timestamp field
* CVE-2015-7691, CVE-2015-7692, CVE-2015-7702 Incomplete autokey
data packet length checks
* obsoletes ntp-memlock.patch.
- Add a controlkey line to /etc/ntp.conf if one does not already
exist to allow runtime configuuration via ntpq.

- Temporarily disable memlock to avoid problems due to high memory
usage during name resolution (boo#946386, ntp-memlock.patch).

- Use SHA1 instead of MD5 for symmetric keys (boo#905885).
- Improve runtime configuration:
* Read keytype from ntp.conf
* Don't write ntp keys to syslog.
- Fix legacy action scripts to pass on command line arguments.

- Remove ntp.1.gz, it wasn't installed anymore.
- Remove ntp-4.2.7-rh-manpages.tar.gz and only keep ntptime.8.gz.
The rest is partially irrelevant, partially redundant and
potentially outdated (boo#942587).
- Remove "kod" from the restrict line in ntp.conf (boo#944300).

- Use ntpq instead of deprecated ntpdc in start-ntpd (boo#936327).
- Add a controlkey to ntp.conf to make the above work.
- Don't let "keysdir" lines in ntp.conf trigger the "keys" parser.
- Disable mode 7 (ntpdc) again, now that we don't use it anymore.

- Add "addserver" as a new legacy action.
- Fix the comment regarding addserver in ntp.conf (boo#910063).

- Update to version 4.2.8p3 which incorporates all security fixes
and most other patches we have so far (fate#319040).
More information on:
http://archive.ntp.org/ntp4/ChangeLog-stable
- Disable chroot by default (boo#926510).
- Enable ntpdc for backwards compatibility (boo#920238).

- Security fix: ntp-keygen may generate non-random symmetric keys

Fixed bugs
bnc#942587
ntpstat not included in SLES 12 ntp package
bnc#975496
sntp prints invalid datestr
bnc#977457
VUL-0: CVE-2016-2518: ntp: Crafted addpeer with hmode > 7 causes array wraparound with MATCH_ASSOC
bnc#944300
ntp config: KOD does nothing without LIMITED
bnc#962988
VUL-1: CVE-2015-7975: ntp: nextvar() missing length check in ntpq
bnc#977464
VUL-0: CVE-2016-1550: ntp: Improve NTP security against buffer comparison timing attacks, authdecrypt-timing, AKA: authdecrypt-timing
bnc#977461
VUL-0: CVE-2016-1548: ntp: Interleave-pivot - MITIGATION ONLY
bnc#963002
VUL-0: CVE-2015-8138: ntp, xntp: Zero Origin Timestamp Bypass
bnc#977446
VUL-0: ntp: 4.2.8p7 release tracker bug
bnc#963000
VUL-0: CVE-2015-7978: ntp, xntp: Stack exhaustion in recursive traversal of restriction list
bnc#962784
VUL-0: CVE-2015-7979: ntp,xntp: off-path denial of service on authenticated broadcast mode
bnc#962960
VUL-1: CVE-2015-7974: ntp,xntp: Missing key check allows impersonation between authenticated peers
bnc#962802
VUL-1: CVE-2015-7976: ntp,xntp: 'ntpq saveconfig' command allows dangerous characters in filenames
bnc#962966
VUL-1: CVE-2015-8158: ntp,xntp: potential infinite loop in ntpq
bnc#916617
sntp command line syntax has changed
bnc#782060
ntpq is very slow
bnc#946386
ntpd runtime configuration ("start-ntp addserver 192.168.200.1") not working
bnc#905885
FIPS: ntpd creates MD5 keys by default in %post
bnc#951608
VUL-0: ntp: October 2015 update fixes several low and medium severity vulnerabilities
bnc#962995
VUL-0: CVE-2015-7973: ntp,xntp: replay attack on authenticated broadcast mode
bnc#951559
sntp prints wrong offset to UTC during DST
bnc#936327
ntpd runtime configuration ("start-ntp addserver 192.168.200.1") not working
bnc#910063
rcntp from ntp.conf should be removed.
bnc#977450
VUL-0: CVE-2016-1551: ntp: Refclock impersonation vulnerability, AKA: refclock-peering
bnc#977451
VUL-0: CVE-2016-1549: ntp: Sybil vulnerability: ephemeral association attack, AKA: ntp-sybil - MITIGATION ONLY
bnc#977452
VUL-0: CVE-2016-2516: ntp: Duplicate IPs on unconfig directives will cause an assertion botch
bnc#926510
[Beta3][Build1040] [Build1041][yast2-ntp-client] Cannot read current settings error
bnc#977455
VUL-0: CVE-2016-2517: ntp: Remote configuration trustedkey/requestkey values are not properly validated
bnc#954982
Local clock not working in ntp
bnc#977458
VUL-0: CVE-2016-2519: ntp: ctl_getitem() return value not always checked
bnc#977459
VUL-0: CVE-2016-1547: ntp: CRYPTO-NAK DoS
bnc#951629
VUL-0: CVE-2015-5300: ntp: MITM attacker can force ntpd to make a step larger than the panic threshold
bnc#920238
ntpdc times out when trying to talk to the ntp server
bnc#962318
NTP client doesn`t work in "synchronize without daemon" mode
bnc#962970
VUL-0: CVE-2015-7977: ntp,xntp: restriction list NULL pointer dereference
bnc#957226
NTP does not start after upgrade to Leap 42.1
bnc#956773
ntp: routing socket reports: No buffer space available
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