Executive Summary
Summary | |
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Title | ntp security update |
Informations | |||
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Name | RHSA-2015:2520 | First vendor Publication | 2015-11-26 |
Vendor | RedHat | Last vendor Modification | 2015-11-26 |
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 one security issue are now available for Red Hat Enterprise Linux 6.5 and 6.6 Extended Update Support. Red Hat Product Security has rated this update as having Important security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.5) - noarch, x86_64 Red Hat Enterprise Linux Compute Node Optional EUS (v. 6.6) - noarch, x86_64 Red Hat Enterprise Linux HPC Node EUS (v. 6.5) - x86_64 Red Hat Enterprise Linux HPC Node EUS (v. 6.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 6.5) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server EUS (v. 6.6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.5) - i386, noarch, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional EUS (v. 6.6) - i386, noarch, ppc64, s390x, 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) Red Hat would like to thank Aanchal Malhotra, Isaac E. Cohen, and Sharon Goldberg of Boston University for reporting this issue. All ntp users are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. 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 |
Original Source
Url : https://rhn.redhat.com/errata/RHSA-2015-2520.html |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | 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 |
2017-02-01 | 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 |
2016-05-09 | 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 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 |
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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2018-01-05 09:26:23 |
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2015-12-01 13:26:34 |
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2015-11-26 17:24:18 |
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