Security update for ntp

SUSE Security Update: Security update for ntp
Announcement ID: SUSE-SU-2018:1765-2
Rating: moderate
References: #1077445 #1082063 #1082210 #1083417 #1083420 #1083422 #1083424 #1083426
Cross-References: CVE-2016-1549 CVE-2018-7170 CVE-2018-7182 CVE-2018-7183 CVE-2018-7184 CVE-2018-7185
Affected Products:
  • SUSE Linux Enterprise Server 12-SP2-BCL

An update that solves 6 vulnerabilities and has two fixes is now available.

Description:

This update for ntp fixes the following issues:

  • Update to 4.2.8p11 (bsc#1082210): * CVE-2016-1549: Sybil vulnerability: ephemeral association attack. While fixed in ntp-4.2.8p7, there are significant additional protections for this issue in 4.2.8p11. * CVE-2018-7182: ctl_getitem(): buffer read overrun leads to undefined behavior and information leak. (bsc#1083426) * CVE-2018-7170: Multiple authenticated ephemeral associations. (bsc#1083424) * CVE-2018-7184: Interleaved symmetric mode cannot recover from bad state. (bsc#1083422) * CVE-2018-7185: Unauthenticated packet can reset authenticated interleaved association. (bsc#1083420) * CVE-2018-7183: ntpq:decodearr() can write beyond its buffer limit.(bsc#1083417)
  • Don't use libevent's cached time stamps in sntp. (bsc#1077445)

This update is a reissue of the previous update with LTSS channels included.

Patch Instructions:

To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

  • SUSE Linux Enterprise Server 12-SP2-BCL:
    zypper in -t patch SUSE-SLE-SERVER-12-SP2-BCL-2018-1188=1

Package List:

  • SUSE Linux Enterprise Server 12-SP2-BCL (x86_64):
    • ntp-4.2.8p11-64.5.1
    • ntp-debuginfo-4.2.8p11-64.5.1
    • ntp-debugsource-4.2.8p11-64.5.1
    • ntp-doc-4.2.8p11-64.5.1

References: