製品・ソフトウェアに関する情報

JVN脆弱性詳細

NTP におけるサービス運用妨害 (DoS) の脆弱性

タイトル	NTP におけるサービス運用妨害 (DoS) の脆弱性
概要	NTP には、サービス運用妨害 (スタックの枯渇) 状態にされる脆弱性が存在します。
想定される影響	リモートの攻撃者により、ntpdc relist コマンドを介して、制限リストの再帰トラバーサルを誘発されることで、サービス運用妨害 (スタックの枯渇) 状態にされる可能性があります。
対策	ベンダより正式な対策が公開されています。ベンダ情報を参照して適切な対策を実施してください。
公表日	2015年10月16日0:00
登録日	2017年2月14日19:49
最終更新日	2017年2月14日19:49

CVSS3.0 : 重要
スコア	7.5
ベクター	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS2.0 : 警告
スコア	5
ベクター	AV:N/AC:L/Au:N/C:N/I:N/A:P

影響を受けるシステム

NTP Project

NTP 4.2.8p6 未満

NTP 4.3.0 以上 4.3.90 未満

CVE (情報セキュリティ共通脆弱性識別子)

No	名前	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2015-7978	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-7978
National Vulnerability Database (NVD)
2	CVE-2015-7978	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-7978

CWE (共通脆弱性タイプ一覧)

No	名前	URL
JVNDB
1	CWE-400	https://cwe.mitre.org/data/definitions/400.html

ベンダー情報

No	名前	URL
Cisco Security Advisory
1	cisco-sa-20160127-ntpd	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd
ntp.org
2	NTP Bug 2940	http://support.ntp.org/bin/view/Main/NtpBug2940
Red Hat Security Advisory
3	RHSA-2016:0780	http://rhn.redhat.com/errata/RHSA-2016-0780.html
4	RHSA-2016:2583	http://rhn.redhat.com/errata/RHSA-2016-2583.html
Security Advisories
5	SA113	https://bto.bluecoat.com/security-advisory/sa113
Security Notice
6	January 2016 NTP-4.2.8p6 Security Vulnerability Announcement (Medium)	http://support.ntp.org/bin/view/Main/SecurityNotice#January_2016_NTP_4_2_8p6_Securit

その他

No	名前	URL
JVN
1	JVNVU#91176422	https://jvn.jp/vu/JVNVU91176422/
US-CERT Vulnerability Note
2	VU#718152	https://www.kb.cert.org/vuls/id/718152

変更履歴

No	変更内容	変更日
0	[2017年02月14日] 掲載	2018年2月17日10:37

NVD脆弱性情報

CVE-2015-7978

概要	NTP before 4.2.8p6 and 4.3.0 before 4.3.90 allows a remote attackers to cause a denial of service (stack exhaustion) via an ntpdc relist command, which triggers recursive traversal of the restriction list.
公表日	2017年1月31日6:59
登録日	2021年1月26日14:57
最終更新日	2024年11月21日11:37

影響を受けるソフトウェアの構成

構成1	以上	以下	より上	未満
cpe:2.3:a:ntp:ntp:4.3.80:::::::*
cpe:2.3:a:ntp:ntp:4.3.51:::::::*
cpe:2.3:a:ntp:ntp:4.3.17:::::::*
cpe:2.3:a:ntp:ntp:4.3.30:::::::*
cpe:2.3:a:ntp:ntp:4.3.74:::::::*
cpe:2.3:a:ntp:ntp:4.3.67:::::::*
cpe:2.3:a:ntp:ntp:4.3.14:::::::*
cpe:2.3:a:ntp:ntp:4.3.27:::::::*
cpe:2.3:a:ntp:ntp:4.3.13:::::::*
cpe:2.3:a:ntp:ntp:4.3.36:::::::*
cpe:2.3:a:ntp:ntp:4.3.16:::::::*
cpe:2.3:a:ntp:ntp:4.3.35:::::::*
cpe:2.3:a:ntp:ntp:4.3.53:::::::*
cpe:2.3:a:ntp:ntp:4.3.64:::::::*
cpe:2.3:a:ntp:ntp:4.3.20:::::::*
cpe:2.3:a:ntp:ntp:4.3.40:::::::*
cpe:2.3:a:ntp:ntp:4.3.68:::::::*
cpe:2.3:a:ntp:ntp:4.3.46:::::::*
cpe:2.3:a:ntp:ntp:4.3.77:::::::*
cpe:2.3:a:ntp:ntp:4.3.1:::::::*
cpe:2.3:a:ntp:ntp:4.3.6:::::::*
cpe:2.3:a:ntp:ntp:4.3.2:::::::*
cpe:2.3:a:ntp:ntp:4.3.78:::::::*
cpe:2.3:a:ntp:ntp:4.3.79:::::::*
cpe:2.3:a:ntp:ntp:4.3.61:::::::*
cpe:2.3:a:ntp:ntp:4.3.42:::::::*
cpe:2.3:a:ntp:ntp:4.3.10:::::::*
cpe:2.3:a:ntp:ntp:4.3.88:::::::*
cpe:2.3:a:ntp:ntp:4.3.69:::::::*
cpe:2.3:a:ntp:ntp:4.3.65:::::::*
cpe:2.3:a:ntp:ntp:4.3.48:::::::*
cpe:2.3:a:ntp:ntp:4.3.71:::::::*
cpe:2.3:a:ntp:ntp:4.3.11:::::::*
cpe:2.3:a:ntp:ntp:4.3.34:::::::*
cpe:2.3:a:ntp:ntp:4.3.58:::::::*
cpe:2.3:a:ntp:ntp:4.3.31:::::::*
cpe:2.3:a:ntp:ntp:4.3.86:::::::*
cpe:2.3:a:ntp:ntp:4.3.85:::::::*
cpe:2.3:a:ntp:ntp:4.3.57:::::::*
cpe:2.3:a:ntp:ntp:4.3.83:::::::*
cpe:2.3:a:ntp:ntp:4.3.22:::::::*
cpe:2.3:a:ntp:ntp:4.3.56:::::::*
cpe:2.3:a:ntp:ntp:4.3.25:::::::*
cpe:2.3:a:ntp:ntp:4.3.70:::::::*
cpe:2.3:a:ntp:ntp:4.3.59:::::::*
cpe:2.3:a:ntp:ntp:4.3.21:::::::*
cpe:2.3:a:ntp:ntp:4.3.39:::::::*
cpe:2.3:a:ntp:ntp:4.3.4:::::::*
cpe:2.3:a:ntp:ntp:4.3.49:::::::*
cpe:2.3:a:ntp:ntp:4.3.50:::::::*
cpe:2.3:a:ntp:ntp:4.3.60:::::::*
cpe:2.3:a:ntp:ntp:4.3.54:::::::*
cpe:2.3:a:ntp:ntp:4.3.15:::::::*
cpe:2.3:a:ntp:ntp:4.3.12:::::::*
cpe:2.3:a:ntp:ntp:4.3.43:::::::*
cpe:2.3:a:ntp:ntp:4.3.45:::::::*
cpe:2.3:a:ntp:ntp:4.3.66:::::::*
cpe:2.3:a:ntp:ntp:4.3.0:::::::*
cpe:2.3:a:ntp:ntp:4.3.3:::::::*
cpe:2.3:a:ntp:ntp:4.3.81:::::::*
cpe:2.3:a:ntp:ntp:4.3.84:::::::*
cpe:2.3:a:ntp:ntp:4.3.24:::::::*
cpe:2.3:a:ntp:ntp:4.3.28:::::::*
cpe:2.3:a:ntp:ntp:4.3.18:::::::*
cpe:2.3:a:ntp:ntp:4.3.76:::::::*
cpe:2.3:a:ntp:ntp:4.3.33:::::::*
cpe:2.3:a:ntp:ntp:4.3.7:::::::*
cpe:2.3:a:ntp:ntp:4.3.38:::::::*
cpe:2.3:a:ntp:ntp:4.3.72:::::::*
cpe:2.3:a:ntp:ntp:4.3.87:::::::*
cpe:2.3:a:ntp:ntp:4.3.29:::::::*
cpe:2.3:a:ntp:ntp:4.3.23:::::::*
cpe:2.3:a:ntp:ntp:4.3.63:::::::*
cpe:2.3:a:ntp:ntp:4.3.52:::::::*
cpe:2.3:a:ntp:ntp:4.3.41:::::::*
cpe:2.3:a:ntp:ntp:4.3.47:::::::*
cpe:2.3:a:ntp:ntp:4.3.37:::::::*
cpe:2.3:a:ntp:ntp:4.3.73:::::::*
cpe:2.3:a:ntp:ntp:4.3.5:::::::*
cpe:2.3:a:ntp:ntp:4.3.82:::::::*
cpe:2.3:a:ntp:ntp:4.3.75:::::::*
cpe:2.3:a:ntp:ntp::p5::::::*		4.2.8
cpe:2.3:a:ntp:ntp:4.3.32:::::::*
cpe:2.3:a:ntp:ntp:4.3.19:::::::*
cpe:2.3:a:ntp:ntp:4.3.44:::::::*
cpe:2.3:a:ntp:ntp:4.3.55:::::::*
cpe:2.3:a:ntp:ntp:4.3.26:::::::*
cpe:2.3:a:ntp:ntp:4.3.62:::::::*
cpe:2.3:a:ntp:ntp:4.3.8:::::::*
cpe:2.3:a:ntp:ntp:4.3.89:::::::*

関連情報、対策とツール

No	URL	タグ
1	http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html	Third Party Advisory
2	http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177507.html	Third Party Advisory
3	http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html	Third Party Advisory
4	http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176434.html	Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html	Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00059.html	Third Party Advisory
7	http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html	Third Party Advisory
8	http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00060.html	Third Party Advisory
9	http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html	Third Party Advisory
10	http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html	Third Party Advisory
11	http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html	Third Party Advisory
12	http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00038.html	Third Party Advisory
13	http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html	Third Party Advisory
14	http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html	Third Party Advisory
15	http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html	Third Party Advisory
16	http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html	Third Party Advisory
17	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html	Third Party Advisory
18	http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html	Third Party Advisory
19	http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html	Third Party Advisory
20	http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html	Third Party Advisory
21	http://rhn.redhat.com/errata/RHSA-2016-0780.html	Third Party Advisory
22	http://rhn.redhat.com/errata/RHSA-2016-0780.html	Third Party Advisory
23	http://rhn.redhat.com/errata/RHSA-2016-2583.html	Third Party Advisory
24	http://rhn.redhat.com/errata/RHSA-2016-2583.html	Third Party Advisory
25	http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security	Vendor Advisory
26	http://support.ntp.org/bin/view/Main/SecurityNotice#April_2016_NTP_4_2_8p7_Security	Vendor Advisory
27	http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd	Third Party Advisory
28	http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160127-ntpd	Third Party Advisory
29	http://www.debian.org/security/2016/dsa-3629	Third Party Advisory
30	http://www.debian.org/security/2016/dsa-3629	Third Party Advisory
31	http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
32	http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
33	http://www.securityfocus.com/bid/81962	Third Party Advisory VDB Entry
34	http://www.securityfocus.com/bid/81962	Third Party Advisory VDB Entry
35	http://www.securitytracker.com/id/1034782	Third Party Advisory VDB Entry
36	http://www.securitytracker.com/id/1034782	Third Party Advisory VDB Entry
37	http://www.ubuntu.com/usn/USN-3096-1	Third Party Advisory
38	http://www.ubuntu.com/usn/USN-3096-1	Third Party Advisory
39	https://bto.bluecoat.com/security-advisory/sa113	Third Party Advisory
40	https://bto.bluecoat.com/security-advisory/sa113	Third Party Advisory
41	https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
42	https://security.FreeBSD.org/advisories/FreeBSD-SA-16:09.ntp.asc
43	https://security.gentoo.org/glsa/201607-15	Third Party Advisory
44	https://security.gentoo.org/glsa/201607-15	Third Party Advisory
45	https://security.netapp.com/advisory/ntap-20171031-0001/
46	https://security.netapp.com/advisory/ntap-20171031-0001/
47	https://www.kb.cert.org/vuls/id/718152	Third Party Advisory US Government Resource
48	https://www.kb.cert.org/vuls/id/718152	Third Party Advisory US Government Resource

共通脆弱性一覧

No	CWE	名前	URL
1	CWE-400	リソースの枯渇	https://cwe.mitre.org/data/definitions/400.html

構成1	以上	以下	より上	未満
cpe:2.3:a:ntp:ntp:4.3.80:::::::*
cpe:2.3:a:ntp:ntp:4.3.51:::::::*
cpe:2.3:a:ntp:ntp:4.3.17:::::::*
cpe:2.3:a:ntp:ntp:4.3.30:::::::*
cpe:2.3:a:ntp:ntp:4.3.74:::::::*
cpe:2.3:a:ntp:ntp:4.3.67:::::::*
cpe:2.3:a:ntp:ntp:4.3.14:::::::*
cpe:2.3:a:ntp:ntp:4.3.27:::::::*
cpe:2.3:a:ntp:ntp:4.3.13:::::::*
cpe:2.3:a:ntp:ntp:4.3.36:::::::*
cpe:2.3:a:ntp:ntp:4.3.16:::::::*
cpe:2.3:a:ntp:ntp:4.3.35:::::::*
cpe:2.3:a:ntp:ntp:4.3.53:::::::*
cpe:2.3:a:ntp:ntp:4.3.64:::::::*
cpe:2.3:a:ntp:ntp:4.3.20:::::::*
cpe:2.3:a:ntp:ntp:4.3.40:::::::*
cpe:2.3:a:ntp:ntp:4.3.68:::::::*
cpe:2.3:a:ntp:ntp:4.3.46:::::::*
cpe:2.3:a:ntp:ntp:4.3.77:::::::*
cpe:2.3:a:ntp:ntp:4.3.1:::::::*
cpe:2.3:a:ntp:ntp:4.3.6:::::::*
cpe:2.3:a:ntp:ntp:4.3.2:::::::*
cpe:2.3:a:ntp:ntp:4.3.78:::::::*
cpe:2.3:a:ntp:ntp:4.3.79:::::::*
cpe:2.3:a:ntp:ntp:4.3.61:::::::*
cpe:2.3:a:ntp:ntp:4.3.42:::::::*
cpe:2.3:a:ntp:ntp:4.3.10:::::::*
cpe:2.3:a:ntp:ntp:4.3.88:::::::*
cpe:2.3:a:ntp:ntp:4.3.69:::::::*
cpe:2.3:a:ntp:ntp:4.3.65:::::::*
cpe:2.3:a:ntp:ntp:4.3.48:::::::*
cpe:2.3:a:ntp:ntp:4.3.71:::::::*
cpe:2.3:a:ntp:ntp:4.3.11:::::::*
cpe:2.3:a:ntp:ntp:4.3.34:::::::*
cpe:2.3:a:ntp:ntp:4.3.58:::::::*
cpe:2.3:a:ntp:ntp:4.3.31:::::::*
cpe:2.3:a:ntp:ntp:4.3.86:::::::*
cpe:2.3:a:ntp:ntp:4.3.85:::::::*
cpe:2.3:a:ntp:ntp:4.3.57:::::::*
cpe:2.3:a:ntp:ntp:4.3.83:::::::*
cpe:2.3:a:ntp:ntp:4.3.22:::::::*
cpe:2.3:a:ntp:ntp:4.3.56:::::::*
cpe:2.3:a:ntp:ntp:4.3.25:::::::*
cpe:2.3:a:ntp:ntp:4.3.70:::::::*
cpe:2.3:a:ntp:ntp:4.3.59:::::::*
cpe:2.3:a:ntp:ntp:4.3.21:::::::*
cpe:2.3:a:ntp:ntp:4.3.39:::::::*
cpe:2.3:a:ntp:ntp:4.3.4:::::::*
cpe:2.3:a:ntp:ntp:4.3.49:::::::*
cpe:2.3:a:ntp:ntp:4.3.50:::::::*
cpe:2.3:a:ntp:ntp:4.3.60:::::::*
cpe:2.3:a:ntp:ntp:4.3.54:::::::*
cpe:2.3:a:ntp:ntp:4.3.15:::::::*
cpe:2.3:a:ntp:ntp:4.3.12:::::::*
cpe:2.3:a:ntp:ntp:4.3.43:::::::*
cpe:2.3:a:ntp:ntp:4.3.45:::::::*
cpe:2.3:a:ntp:ntp:4.3.66:::::::*
cpe:2.3:a:ntp:ntp:4.3.0:::::::*
cpe:2.3:a:ntp:ntp:4.3.3:::::::*
cpe:2.3:a:ntp:ntp:4.3.81:::::::*
cpe:2.3:a:ntp:ntp:4.3.84:::::::*
cpe:2.3:a:ntp:ntp:4.3.24:::::::*
cpe:2.3:a:ntp:ntp:4.3.28:::::::*
cpe:2.3:a:ntp:ntp:4.3.18:::::::*
cpe:2.3:a:ntp:ntp:4.3.76:::::::*
cpe:2.3:a:ntp:ntp:4.3.33:::::::*
cpe:2.3:a:ntp:ntp:4.3.7:::::::*
cpe:2.3:a:ntp:ntp:4.3.38:::::::*
cpe:2.3:a:ntp:ntp:4.3.72:::::::*
cpe:2.3:a:ntp:ntp:4.3.87:::::::*
cpe:2.3:a:ntp:ntp:4.3.29:::::::*
cpe:2.3:a:ntp:ntp:4.3.23:::::::*
cpe:2.3:a:ntp:ntp:4.3.63:::::::*
cpe:2.3:a:ntp:ntp:4.3.52:::::::*
cpe:2.3:a:ntp:ntp:4.3.41:::::::*
cpe:2.3:a:ntp:ntp:4.3.47:::::::*
cpe:2.3:a:ntp:ntp:4.3.37:::::::*
cpe:2.3:a:ntp:ntp:4.3.73:::::::*
cpe:2.3:a:ntp:ntp:4.3.5:::::::*
cpe:2.3:a:ntp:ntp:4.3.82:::::::*
cpe:2.3:a:ntp:ntp:4.3.75:::::::*
cpe:2.3:a:ntp:ntp::p5::::::*		4.2.8
cpe:2.3:a:ntp:ntp:4.3.32:::::::*
cpe:2.3:a:ntp:ntp:4.3.19:::::::*
cpe:2.3:a:ntp:ntp:4.3.44:::::::*
cpe:2.3:a:ntp:ntp:4.3.55:::::::*
cpe:2.3:a:ntp:ntp:4.3.26:::::::*
cpe:2.3:a:ntp:ntp:4.3.62:::::::*
cpe:2.3:a:ntp:ntp:4.3.8:::::::*
cpe:2.3:a:ntp:ntp:4.3.89:::::::*