Executive Summary
Summary | |
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Title | ntp security update |
Informations | |||
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Name | RHSA-2015:1930 | First vendor Publication | 2015-10-26 |
Vendor | RedHat | Last vendor Modification | 2015-10-26 |
Severity (Vendor) | Important | Revision | 01 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P) | |||
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Cvss Base Score | 5 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Problem Description: Updated ntp packages that fix two security issues are now available for Red Hat Enterprise Linux 6 and 7. Red Hat Product Security has rated this update as having Important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - noarch, x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, noarch, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - noarch, x86_64 3. Description: The Network Time Protocol (NTP) is used to synchronize a computer's time with a referenced time source. It was discovered that ntpd as a client did not correctly check timestamps in Kiss-of-Death packets. A remote attacker could use this flaw to send a crafted Kiss-of-Death packet to an ntpd client that would increase the client's polling interval value, and effectively disable synchronization with the server. (CVE-2015-7704) It was found that ntpd did not correctly implement the threshold limitation for the '-g' option, which is used to set the time without any restrictions. A man-in-the-middle attacker able to intercept NTP traffic between a connecting client and an NTP server could use this flaw to force that client to make multiple steps larger than the panic threshold, effectively changing the time to an arbitrary value. (CVE-2015-5300) Red Hat would like to thank Aanchal Malhotra, Isaac E. Cohen, and Sharon Goldberg of Boston University for reporting these issues. All ntp users are advised to upgrade to these updated packages, which contain backported patches to resolve these issues. After installing the update, the ntpd daemon will restart automatically. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1271070 - CVE-2015-7704 ntp: disabling synchronization via crafted KoD packet 1271076 - CVE-2015-5300 ntp: MITM attacker can force ntpd to make a step larger than the panic threshold |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2015-1930.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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50 % | CWE-361 | Time and State |
50 % | CWE-20 | Improper Input Validation |
CPE : Common Platform Enumeration
Snort® IPS/IDS
Date | Description |
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2016-12-20 | NTP origin timestamp denial of service attempt RuleID : 40811 - Revision : 4 - Type : SERVER-OTHER |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2018-05-11 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2018-1009.nasl - Type : ACT_GATHER_INFO |
2018-05-11 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2018-1009.nasl - Type : ACT_GATHER_INFO |
2017-08-09 | Name : The remote AIX host has a version of NTP installed that is affected by a data... File : aix_ntp_v4_advisory5.nasl - Type : ACT_GATHER_INFO |
2017-02-01 | Name : The remote host is affected by multiple vulnerabilities. File : citrix_xenserver_CTX220112.nasl - Type : ACT_GATHER_INFO |
2016-08-29 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1912-1.nasl - Type : ACT_GATHER_INFO |
2016-07-21 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201607-15.nasl - Type : ACT_GATHER_INFO |
2016-06-17 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1568-1.nasl - Type : ACT_GATHER_INFO |
2016-06-01 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2016-0082.nasl - Type : ACT_GATHER_INFO |
2016-06-01 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2016-649.nasl - Type : ACT_GATHER_INFO |
2016-05-20 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2016-599.nasl - Type : ACT_GATHER_INFO |
2016-05-19 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1311-1.nasl - Type : ACT_GATHER_INFO |
2016-05-16 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1291-1.nasl - Type : ACT_GATHER_INFO |
2016-05-13 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1278-1.nasl - Type : ACT_GATHER_INFO |
2016-05-13 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2016-578.nasl - Type : ACT_GATHER_INFO |
2016-05-09 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1247-1.nasl - Type : ACT_GATHER_INFO |
2016-05-05 | Name : The remote NTP server is affected by multiple vulnerabilities. File : ntp_4_2_8p7.nasl - Type : ACT_GATHER_INFO |
2016-05-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1177-1.nasl - Type : ACT_GATHER_INFO |
2016-05-02 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2016-1175-1.nasl - Type : ACT_GATHER_INFO |
2016-05-02 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2016-120-01.nasl - Type : ACT_GATHER_INFO |
2016-04-27 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_b2487d9a0c3011e6acd0d050996490d0.nasl - Type : ACT_GATHER_INFO |
2016-03-04 | Name : The remote Fedora host is missing a security update. File : fedora_2015-f5f5ec7b6b.nasl - Type : ACT_GATHER_INFO |
2016-03-04 | Name : The remote Fedora host is missing a security update. File : fedora_2016-34bc10a2c8.nasl - Type : ACT_GATHER_INFO |
2016-03-04 | Name : The remote Fedora host is missing a security update. File : fedora_2015-77bfbc1bcd.nasl - Type : ACT_GATHER_INFO |
2016-03-04 | Name : The remote AIX host is missing a security patch. File : aix_ntp_advisory5.nasl - Type : ACT_GATHER_INFO |
2016-02-24 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL10600056.nasl - Type : ACT_GATHER_INFO |
2016-02-24 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2016-054-04.nasl - Type : ACT_GATHER_INFO |
2016-01-08 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_4eae4f46b5ce11e58a2bd050996490d0.nasl - Type : ACT_GATHER_INFO |
2015-11-30 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2015-2520.nasl - Type : ACT_GATHER_INFO |
2015-11-23 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2015-2058-1.nasl - Type : ACT_GATHER_INFO |
2015-11-20 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2015-767.nasl - Type : ACT_GATHER_INFO |
2015-11-06 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL17566.nasl - Type : ACT_GATHER_INFO |
2015-11-02 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-3388.nasl - Type : ACT_GATHER_INFO |
2015-10-30 | Name : The remote Slackware host is missing a security update. File : Slackware_SSA_2015-302-03.nasl - Type : ACT_GATHER_INFO |
2015-10-29 | Name : The remote Debian host is missing a security update. File : debian_DLA-335.nasl - Type : ACT_GATHER_INFO |
2015-10-29 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2015-607.nasl - Type : ACT_GATHER_INFO |
2015-10-28 | Name : The remote Ubuntu host is missing a security-related patch. File : ubuntu_USN-2783-1.nasl - Type : ACT_GATHER_INFO |
2015-10-28 | Name : The remote NTP server is affected by multiple vulnerabilities. File : ntp_4_2_8p4.nasl - Type : ACT_GATHER_INFO |
2015-10-27 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20151026_ntp_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
2015-10-27 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2015-1930.nasl - Type : ACT_GATHER_INFO |
2015-10-27 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2015-0140.nasl - Type : ACT_GATHER_INFO |
2015-10-27 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2015-1930.nasl - Type : ACT_GATHER_INFO |
2015-10-27 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2015-1930.nasl - Type : ACT_GATHER_INFO |
2015-10-22 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_c4a18a1277fc11e5a687206a8a720317.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
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2017-11-10 09:24:55 |
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2017-07-31 21:23:31 |
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2017-07-21 21:25:09 |
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2015-12-05 13:28:25 |
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2015-10-30 13:24:40 |
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2015-10-28 13:24:25 |
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2015-10-27 00:21:37 |
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