NVD Vulnerability Detail

CVE-2019-3859

Summary	An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.
Publication Date	March 22, 2019, 1:01 a.m.
Registration Date	Jan. 26, 2021, 11:42 a.m.
Last Update	Nov. 21, 2024, 1:42 p.m.

CVSS3.0 : CRITICAL
スコア	9.1
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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)	高
完全性への影響(I)	なし
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	6.4
Vector	AV:N/AC:L/Au:N/C:P/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)	低
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:libssh2:libssh2::::::::					1.8.1

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:28:::::::*
cpe:2.3:o:fedoraproject:fedora:29:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:8.0:::::::*
cpe:2.3:o:debian:debian_linux:9.0:::::::*

Configuration4		or higher	or less	more than	less than
cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:::::::*

Configuration5	or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:42.3:::::::*
cpe:2.3:o:opensuse:leap:15.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html	Mailing List Third Party Advisory
5	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html	Mailing List Third Party Advisory
6	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00102.html	Mailing List Third Party Advisory
7	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html	Mailing List Third Party Advisory
8	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00103.html	Mailing List Third Party Advisory
9	http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html	Patch Third Party Advisory VDB Entry
10	http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html	Patch Third Party Advisory VDB Entry
11	http://www.openwall.com/lists/oss-security/2019/03/18/3	Mailing List Patch Third Party Advisory
12	http://www.openwall.com/lists/oss-security/2019/03/18/3	Mailing List Patch Third Party Advisory
13	http://www.securityfocus.com/bid/107485	Third Party Advisory VDB Entry
14	http://www.securityfocus.com/bid/107485	Third Party Advisory VDB Entry
15	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859	Issue Tracking Patch Third Party Advisory
16	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859	Issue Tracking Patch Third Party Advisory
17	https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html	Mailing List Third Party Advisory
18	https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html	Mailing List Third Party Advisory
19	https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html	Mailing List Third Party Advisory
20	https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html	Mailing List Third Party Advisory
21	https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
22	https://lists.debian.org/debian-lts-announce/2019/07/msg00024.html
23	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
24	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
25	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
26	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
27	https://seclists.org/bugtraq/2019/Apr/25	Mailing List Third Party Advisory
28	https://seclists.org/bugtraq/2019/Apr/25	Mailing List Third Party Advisory
29	https://seclists.org/bugtraq/2019/Mar/25	Mailing List Patch Third Party Advisory
30	https://seclists.org/bugtraq/2019/Mar/25	Mailing List Patch Third Party Advisory
31	https://security.netapp.com/advisory/ntap-20190327-0005/	Third Party Advisory
32	https://security.netapp.com/advisory/ntap-20190327-0005/	Third Party Advisory
33	https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767	Third Party Advisory
34	https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-767	Third Party Advisory
35	https://www.debian.org/security/2019/dsa-4431	Third Party Advisory
36	https://www.debian.org/security/2019/dsa-4431	Third Party Advisory
37	https://www.libssh2.org/CVE-2019-3859.html	Vendor Advisory
38	https://www.libssh2.org/CVE-2019-3859.html	Vendor Advisory
39	https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
40	https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-125	境界外読み取り	https://cwe.mitre.org/data/definitions/125.html

JVN Vulnerability Information

libssh2 における境界外読み取りに関する脆弱性

Title	libssh2 における境界外読み取りに関する脆弱性
Summary	libssh2 には、境界外読み取りに関する脆弱性が存在します。
Possible impacts	情報を取得される、およびサービス運用妨害 (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	March 18, 2019, midnight
Registration Date	April 24, 2019, 3:16 p.m.
Last Update	April 24, 2019, 3:16 p.m.

Affected System

Debian

Debian GNU/Linux

Fedora Project

Fedora

NetApp

ONTAP Select Deploy administration utility

openSUSE project

openSUSE Leap

libssh2.org

libssh2 1.8.1 未満

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-2019-3859	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3859
libssh2 Security Advisory
2	CVE-2019-3859	https://www.libssh2.org/CVE-2019-3859.html
National Vulnerability Database (NVD)
3	CVE-2019-3859	https://nvd.nist.gov/vuln/detail/CVE-2019-3859

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-125	https://cwe.mitre.org/data/definitions/125.html

ベンダー情報

No	Name	URL
Debian
1	[SECURITY] [DLA 1730-1] libssh2 security update	https://lists.debian.org/debian-lts-announce/2019/03/msg00032.html
2	[SECURITY] [DLA 1730-2] libssh2 regression update	https://lists.debian.org/debian-lts-announce/2019/04/msg00006.html
Debian Security Advisory
3	DSA-4431	https://www.debian.org/security/2019/dsa-4431
Fedora Update Notification
4	FEDORA-2019-3348cb4934	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5DK6VO2CEUTAJFYIKWNZKEKYMYR3NO2O/
5	FEDORA-2019-f31c14682f	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XCWEA5ZCLKRDUK62QVVYMFWLWKOPX3LO/
NetApp Advisory
6	NTAP-20190327-0005	https://security.netapp.com/advisory/ntap-20190327-0005/
opensuse-security-announce
7	openSUSE-SU-2019:1075-1	http://lists.opensuse.org/opensuse-security-announce/2019-03/msg00040.html
8	openSUSE-SU-2019:1109-1	http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00003.html

その他

No	Name	URL
関連文書
1	Red Hat Bugzilla - Bug 1687307	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3859
2	Slackware Security Advisory - libssh2 Updates	http://packetstormsecurity.com/files/152136/Slackware-Security-Advisory-libssh2-Updates.html
3	[SECURITY ADVISORIES] libssh2	http://www.openwall.com/lists/oss-security/2019/03/18/3
4	[slackware-security] libssh2 (SSA:2019-077-01)	https://seclists.org/bugtraq/2019/Mar/25

Change Log

No	Changed Details	Date of change
1	[2019年04月24日] 掲載	April 24, 2019, 3:16 p.m.