NVD Vulnerability Detail

CVE-2016-6302

Summary	The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short.
Publication Date	Sept. 16, 2016, 2:59 p.m.
Registration Date	Jan. 26, 2021, 2:15 p.m.
Last Update	Nov. 21, 2024, 11:55 a.m.

CVSS3.0 : HIGH
スコア	7.5
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	不要
影響の想定範囲(S)	変更なし
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	5.0
Vector	AV:N/AC:L/Au:N/C:N/I:N/A:P
攻撃元区分(AV)	ネットワーク
攻撃条件の複雑さ(AC)	低
攻撃前の認証要否(Au)	不要
機密性への影響(C)	なし
完全性への影響(I)	なし
可用性への影響(A)	低
Get all privileges.	いいえ
Get user privileges	いいえ
Get other privileges	いいえ
User operation required	いいえ

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:openssl:openssl:1.0.1m:::::::*
cpe:2.3:a:openssl:openssl:1.0.2a:::::::*
cpe:2.3:a:openssl:openssl:1.0.1j:::::::*
cpe:2.3:a:openssl:openssl:1.0.1h:::::::*
cpe:2.3:a:openssl:openssl:1.0.2e:::::::*
cpe:2.3:a:openssl:openssl:1.0.1r:::::::*
cpe:2.3:a:openssl:openssl:1.0.2b:::::::*
cpe:2.3:a:openssl:openssl:1.0.1c:::::::*
cpe:2.3:a:openssl:openssl:1.0.1g:::::::*
cpe:2.3:a:openssl:openssl:1.0.2g:::::::*
cpe:2.3:a:openssl:openssl:1.0.1a:::::::*
cpe:2.3:a:openssl:openssl:1.0.2h:::::::*
cpe:2.3:a:openssl:openssl:1.0.1d:::::::*
cpe:2.3:a:openssl:openssl:1.0.1t:::::::*
cpe:2.3:a:openssl:openssl:1.0.2c:::::::*
cpe:2.3:a:openssl:openssl:1.0.1p:::::::*
cpe:2.3:a:openssl:openssl:1.0.1k:::::::*
cpe:2.3:a:openssl:openssl:1.0.1b:::::::*
cpe:2.3:a:openssl:openssl:1.0.1n:::::::*
cpe:2.3:a:openssl:openssl:1.0.1q:::::::*
cpe:2.3:a:openssl:openssl:1.0.1e:::::::*
cpe:2.3:a:openssl:openssl:1.0.1l:::::::*
cpe:2.3:a:openssl:openssl:1.0.1f:::::::*
cpe:2.3:a:openssl:openssl:1.0.1s:::::::*
cpe:2.3:a:openssl:openssl:1.0.1o:::::::*
cpe:2.3:a:openssl:openssl:1.0.2:::::::*
cpe:2.3:a:openssl:openssl:1.0.2f:::::::*
cpe:2.3:a:openssl:openssl:1.0.1i:::::::*
cpe:2.3:a:openssl:openssl:1.0.1:::::::*
cpe:2.3:a:openssl:openssl:1.0.2d:::::::*

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:oracle:solaris:11.3:::::::*
cpe:2.3:o:oracle:solaris:10:::::::*
cpe:2.3:o:oracle:linux:6:::::::*
cpe:2.3:o:oracle:linux:7:::::::*

Related information, measures and tools

No	URL	タグ
1	http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759	Third Party Advisory
2	http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759	Third Party Advisory
3	http://rhn.redhat.com/errata/RHSA-2016-1940.html
4	http://rhn.redhat.com/errata/RHSA-2016-1940.html
5	http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
6	http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
7	http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
8	http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
9	http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
10	http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
11	http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html	Patch Third Party Advisory
12	http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html	Patch Third Party Advisory
13	http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
14	http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
15	http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html	Patch Third Party Advisory
16	http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html	Patch Third Party Advisory
17	http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html	Patch Third Party Advisory
18	http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html	Patch Third Party Advisory
19	http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html	Patch Third Party Advisory
20	http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html	Patch Third Party Advisory
21	http://www.securityfocus.com/bid/92628	Third Party Advisory VDB Entry
22	http://www.securityfocus.com/bid/92628	Third Party Advisory VDB Entry
23	http://www.securitytracker.com/id/1036885
24	http://www.securitytracker.com/id/1036885
25	http://www.splunk.com/view/SP-CAAAPSV	Third Party Advisory
26	http://www.splunk.com/view/SP-CAAAPSV	Third Party Advisory
27	http://www.splunk.com/view/SP-CAAAPUE	Third Party Advisory
28	http://www.splunk.com/view/SP-CAAAPUE	Third Party Advisory
29	http://www-01.ibm.com/support/docview.wss?uid=swg21995039	Third Party Advisory
30	http://www-01.ibm.com/support/docview.wss?uid=swg21995039	Third Party Advisory
31	https://access.redhat.com/errata/RHSA-2018:2185
32	https://access.redhat.com/errata/RHSA-2018:2185
33	https://access.redhat.com/errata/RHSA-2018:2186
34	https://access.redhat.com/errata/RHSA-2018:2186
35	https://access.redhat.com/errata/RHSA-2018:2187
36	https://access.redhat.com/errata/RHSA-2018:2187
37	https://bto.bluecoat.com/security-advisory/sa132	Third Party Advisory
38	https://bto.bluecoat.com/security-advisory/sa132	Third Party Advisory
39	https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
40	https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
41	https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=e97763c92c655dcf4af2860b3abd2bc4c8a267f9
42	https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=e97763c92c655dcf4af2860b3abd2bc4c8a267f9
43	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312	Third Party Advisory
44	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312	Third Party Advisory
45	https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc
46	https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc
47	https://www.tenable.com/security/tns-2016-16	Third Party Advisory
48	https://www.tenable.com/security/tns-2016-16	Third Party Advisory
49	https://www.tenable.com/security/tns-2016-20
50	https://www.tenable.com/security/tns-2016-20
51	https://www.tenable.com/security/tns-2016-21
52	https://www.tenable.com/security/tns-2016-21

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-20	不適切な入力確認	https://cwe.mitre.org/data/definitions/20.html

JVN Vulnerability Information

OpenSSL の ssl/t1_lib.c の tls_decrypt_ticket 関数におけるサービス運用妨害 (DoS) の脆弱性

Title	OpenSSL の ssl/t1_lib.c の tls_decrypt_ticket 関数におけるサービス運用妨害 (DoS) の脆弱性
Summary	OpenSSL の ssl/t1_lib.c の tls_decrypt_ticket 関数は、チケット長の検証中に HMAC のサイズを考慮しないため、サービス運用妨害 (DoS) 状態にされる脆弱性が存在します。
Possible impacts	第三者により、過度に短いチケットを介して、サービス運用妨害 (DoS) 状態にされる可能性があります。
Solution	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。
Publication Date	Aug. 24, 2016, midnight
Registration Date	Sept. 21, 2016, 10:33 a.m.
Last Update	Oct. 3, 2017, 2:28 p.m.

Affected System

オラクル

Oracle Linux 6

Oracle Linux 7

Oracle Solaris 10

Oracle Solaris 11.3

OpenSSL Project

OpenSSL 1.1.0 未満

日本電気

CapsSuite V3.0 から V4.0

EnterpriseIdentityManager

ESMPRO/ServerAgent 4.4.22-1以降

ESMPRO/ServerAgentService 全バージョン (Linux版)

Express5800 SG3600全シリーズ

IX1000シリーズ

IX2000シリーズ

IX3000シリーズ

SecureWare/PKIアプリケーション開発キット Ver3.2

WebOTX Application Server Enterprise V8.2 から V9.4

WebOTX Application Server Express V8.2 から V9.4

WebOTX Application Server Foundation V8.2 から V8.5

WebOTX Application Server Standard V8.2 から V9.4

WebOTX Enterprise Service Bus V8.2 から V8.5

WebOTX Portal V8.2 から V9.1

CVE (情報セキュリティ共通脆弱性識別子)

No	Name	URL
Common Vulnerabilities and Exposures (CVE)
1	CVE-2016-6302	http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6302
National Vulnerability Database (NVD)
2	CVE-2016-6302	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2016-6302

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-20	https://jvndb.jvn.jp/ja/cwe/CWE-20.html

ベンダー情報

No	Name	URL
Cisco Security Advisory
1	cisco-sa-20160927-openssl	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl
IBM Support Document
2	1995039	http://www-01.ibm.com/support/docview.wss?uid=swg21995039
NEC製品セキュリティ情報
3	NV17-001	http://jpn.nec.com/security-info/secinfo/nv17-001.html
News
4	OpenSSL 1.0.1 Series Release Notes	https://www.openssl.org/news/openssl-1.0.1-notes.html
5	OpenSSL 1.0.2 Series Release Notes	https://www.openssl.org/news/openssl-1.0.2-notes.html
OpenSSL Project
6	Sanity check ticket length.	https://git.openssl.org/?p=openssl.git;a=commit;h=e97763c92c655dcf4af2860b3abd2bc4c8a267f9
Oracle Critical Patch Update
7	Oracle Critical Patch Update Advisory - October 2016	http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
Oracle Technology Network
8	Oracle Linux Bulletin - October 2016	http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
9	Oracle Solaris Third Party Bulletin - October 2016	http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
10	Oracle VM Server for x86 Bulletin - October 2016	http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
Security Advisories
11	SA132	https://bto.bluecoat.com/security-advisory/sa132
12	SA40312	https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
Security Bulletin
13	JSA10759	http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
Splunk
14	Splunk Enterprise 6.4.5 addresses multiple vulnerabilities	http://www.splunk.com/view/SP-CAAAPUE
15	Splunk Enterprise 6.5.1 addresses multiple OpenSSL vulnerabilities	http://www.splunk.com/view/SP-CAAAPSV
Tenable Network Security
16	TNS-2016-16	https://www.tenable.com/security/tns-2016-16

その他

No	Name	URL
JVN
1	JVNVU#98667810	http://jvn.jp/vu/JVNVU98667810/index.html
関連文書
2	BizMobile Go! 脆弱性対応状況	http://www.bizmobile.co.jp/news_02.php?id=4069&nc=1

Change Log

No	Changed Details	Date of change
0	[2016年09月21日] 掲載 [2016年10月07日] ベンダ情報：OpenSSL Project (OpenSSL 1.0.1 Series Release Notes) を追加ベンダ情報：OpenSSL Project (OpenSSL 1.0.2 Series Release Notes) を追加ベンダ情報：シスコシステムズ (cisco-sa-20160927-openssl) を追加参考情報：JVN (JVNVU#98667810) を追加 [2016年11月17日] ベンダ情報：オラクル (Oracle Critical Patch Update Advisory - October 2016) を追加ベンダ情報：オラクル (Oracle Linux Bulletin - October 2016) を追加ベンダ情報：オラクル (Oracle Solaris Third Party Bulletin - October 2016) を追加ベンダ情報：オラクル (Oracle VM Server for x86 Bulletin - October 2016) を追加参考情報：関連文書 (BizMobile Go! 脆弱性対応状況) を追加 [2017年02月21日] 影響を受けるシステム：ベンダ情報の追加に伴い内容を更新ベンダ情報：日本電気 (NV17-001) を追加ベンダ情報：パルスセキュア (SA40312) を追加ベンダ情報：ジュニパーネットワークス (JSA10759) を追加ベンダ情報：ブルーコートシステムズ (SA132) を追加ベンダ情報：IBM (1995039) を追加ベンダ情報：Tenable Network Security (TNS-2016-16) を追加ベンダ情報：Splunk (Splunk Enterprise 6.4.5 addresses multiple vulnerabilities) を追加ベンダ情報：Splunk (Splunk Enterprise 6.5.1 addresses multiple OpenSSL vulnerabilities) を追加 [2017年03月09日] 影響を受けるシステム：ベンダ情報の更新に伴い内容を更新 [2017年07月25日] 影響を受けるシステム：ベンダ情報 (NV17-001) の更新に伴い内容を更新 [2017年10月03日] 影響を受けるシステム：内容を更新	Feb. 17, 2018, 10:37 a.m.

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:openssl:openssl:1.0.1m:::::::*
cpe:2.3:a:openssl:openssl:1.0.2a:::::::*
cpe:2.3:a:openssl:openssl:1.0.1j:::::::*
cpe:2.3:a:openssl:openssl:1.0.1h:::::::*
cpe:2.3:a:openssl:openssl:1.0.2e:::::::*
cpe:2.3:a:openssl:openssl:1.0.1r:::::::*
cpe:2.3:a:openssl:openssl:1.0.2b:::::::*
cpe:2.3:a:openssl:openssl:1.0.1c:::::::*
cpe:2.3:a:openssl:openssl:1.0.1g:::::::*
cpe:2.3:a:openssl:openssl:1.0.2g:::::::*
cpe:2.3:a:openssl:openssl:1.0.1a:::::::*
cpe:2.3:a:openssl:openssl:1.0.2h:::::::*
cpe:2.3:a:openssl:openssl:1.0.1d:::::::*
cpe:2.3:a:openssl:openssl:1.0.1t:::::::*
cpe:2.3:a:openssl:openssl:1.0.2c:::::::*
cpe:2.3:a:openssl:openssl:1.0.1p:::::::*
cpe:2.3:a:openssl:openssl:1.0.1k:::::::*
cpe:2.3:a:openssl:openssl:1.0.1b:::::::*
cpe:2.3:a:openssl:openssl:1.0.1n:::::::*
cpe:2.3:a:openssl:openssl:1.0.1q:::::::*
cpe:2.3:a:openssl:openssl:1.0.1e:::::::*
cpe:2.3:a:openssl:openssl:1.0.1l:::::::*
cpe:2.3:a:openssl:openssl:1.0.1f:::::::*
cpe:2.3:a:openssl:openssl:1.0.1s:::::::*
cpe:2.3:a:openssl:openssl:1.0.1o:::::::*
cpe:2.3:a:openssl:openssl:1.0.2:::::::*
cpe:2.3:a:openssl:openssl:1.0.2f:::::::*
cpe:2.3:a:openssl:openssl:1.0.1i:::::::*
cpe:2.3:a:openssl:openssl:1.0.1:::::::*
cpe:2.3:a:openssl:openssl:1.0.2d:::::::*