-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: ntp security, bug fix, and enhancement update Advisory ID: RHSA-2018:0855-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2018:0855 Issue date: 2018-04-10 CVE Names: CVE-2017-6462 CVE-2017-6463 CVE-2017-6464 ===================================================================== 1. Summary: An update for ntp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - noarch, x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - noarch, x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) - aarch64, ppc64le, s390x Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) - aarch64, noarch, ppc64le, s390x 3. Description: The Network Time Protocol (NTP) is used to synchronize a computer's time with another referenced time source. These packages include the ntpd service which continuously adjusts system time and utilities used to query and configure the ntpd service. Security Fix(es): * ntp: Authenticated DoS via Malicious Config Option (CVE-2017-6463) * ntp: Denial of Service via Malformed Config (CVE-2017-6464) * ntp: Buffer Overflow in DPTS Clock (CVE-2017-6462) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. Red Hat would like to thank the NTP project for reporting these issues. Upstream acknowledges Cure53 as the original reporter of these issues. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 After installing this update, the ntpd daemon will restart automatically. 5. Bugs fixed (https://bugzilla.redhat.com/): 1420453 - Typos in ntpd man page 1433987 - CVE-2017-6464 ntp: Denial of Service via Malformed Config 1433995 - CVE-2017-6462 ntp: Buffer Overflow in DPTS Clock 1434002 - CVE-2017-6463 ntp: Authenticated DoS via Malicious Config Option 1442083 - Delayed name resolving fails when fips is enabled 1466947 - ntpdate.service should start after network-online.target 1491797 - RFE: Backport Spectracom TSYNC driver to ntp 1493452 - ntpd clears STA_UNSYNC on start 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: ntp-4.2.6p5-28.el7.src.rpm x86_64: ntp-4.2.6p5-28.el7.x86_64.rpm ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm ntpdate-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux Client Optional (v. 7): noarch: ntp-doc-4.2.6p5-28.el7.noarch.rpm ntp-perl-4.2.6p5-28.el7.noarch.rpm x86_64: ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm sntp-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: ntp-4.2.6p5-28.el7.src.rpm x86_64: ntp-4.2.6p5-28.el7.x86_64.rpm ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm ntpdate-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux ComputeNode Optional (v. 7): noarch: ntp-doc-4.2.6p5-28.el7.noarch.rpm ntp-perl-4.2.6p5-28.el7.noarch.rpm x86_64: ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm sntp-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: ntp-4.2.6p5-28.el7.src.rpm ppc64: ntp-4.2.6p5-28.el7.ppc64.rpm ntp-debuginfo-4.2.6p5-28.el7.ppc64.rpm ntpdate-4.2.6p5-28.el7.ppc64.rpm ppc64le: ntp-4.2.6p5-28.el7.ppc64le.rpm ntp-debuginfo-4.2.6p5-28.el7.ppc64le.rpm ntpdate-4.2.6p5-28.el7.ppc64le.rpm s390x: ntp-4.2.6p5-28.el7.s390x.rpm ntp-debuginfo-4.2.6p5-28.el7.s390x.rpm ntpdate-4.2.6p5-28.el7.s390x.rpm x86_64: ntp-4.2.6p5-28.el7.x86_64.rpm ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm ntpdate-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7): Source: ntp-4.2.6p5-28.el7.src.rpm aarch64: ntp-4.2.6p5-28.el7.aarch64.rpm ntp-debuginfo-4.2.6p5-28.el7.aarch64.rpm ntpdate-4.2.6p5-28.el7.aarch64.rpm ppc64le: ntp-4.2.6p5-28.el7.ppc64le.rpm ntp-debuginfo-4.2.6p5-28.el7.ppc64le.rpm ntpdate-4.2.6p5-28.el7.ppc64le.rpm s390x: ntp-4.2.6p5-28.el7.s390x.rpm ntp-debuginfo-4.2.6p5-28.el7.s390x.rpm ntpdate-4.2.6p5-28.el7.s390x.rpm Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7): aarch64: ntp-debuginfo-4.2.6p5-28.el7.aarch64.rpm sntp-4.2.6p5-28.el7.aarch64.rpm noarch: ntp-doc-4.2.6p5-28.el7.noarch.rpm ntp-perl-4.2.6p5-28.el7.noarch.rpm ppc64le: ntp-debuginfo-4.2.6p5-28.el7.ppc64le.rpm sntp-4.2.6p5-28.el7.ppc64le.rpm s390x: ntp-debuginfo-4.2.6p5-28.el7.s390x.rpm sntp-4.2.6p5-28.el7.s390x.rpm Red Hat Enterprise Linux Server Optional (v. 7): noarch: ntp-doc-4.2.6p5-28.el7.noarch.rpm ntp-perl-4.2.6p5-28.el7.noarch.rpm ppc64: ntp-debuginfo-4.2.6p5-28.el7.ppc64.rpm sntp-4.2.6p5-28.el7.ppc64.rpm ppc64le: ntp-debuginfo-4.2.6p5-28.el7.ppc64le.rpm sntp-4.2.6p5-28.el7.ppc64le.rpm s390x: ntp-debuginfo-4.2.6p5-28.el7.s390x.rpm sntp-4.2.6p5-28.el7.s390x.rpm x86_64: ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm sntp-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: ntp-4.2.6p5-28.el7.src.rpm x86_64: ntp-4.2.6p5-28.el7.x86_64.rpm ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm ntpdate-4.2.6p5-28.el7.x86_64.rpm Red Hat Enterprise Linux Workstation Optional (v. 7): noarch: ntp-doc-4.2.6p5-28.el7.noarch.rpm ntp-perl-4.2.6p5-28.el7.noarch.rpm x86_64: ntp-debuginfo-4.2.6p5-28.el7.x86_64.rpm sntp-4.2.6p5-28.el7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2017-6462 https://access.redhat.com/security/cve/CVE-2017-6463 https://access.redhat.com/security/cve/CVE-2017-6464 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-US/red_hat_enterprise_linux/7/html/7.5_release_notes/index.html 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2018 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iD8DBQFazHlzXlSAg2UNWIIRAth7AKCMzb5lhGgvBZAYA3FELEtX8MJgIQCgjDiS 2HCCsCGACp0FtOU6jFkprKo= =B7P4 -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce