NVD Vulnerability Detail

CVE-2020-10700

Summary	A use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with the 'ASQ' control. A malicious user in a samba AD could use this flaw to cause denial of service. This issue affects all samba versions before 4.10.15, before 4.11.8 and before 4.12.2.
Publication Date	May 5, 2020, 6:15 a.m.
Registration Date	Jan. 26, 2021, 11:50 a.m.
Last Update	Nov. 21, 2024, 1:55 p.m.

CVSS3.1 : MEDIUM
スコア	5.3
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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)	高
攻撃に必要な特権レベル(PR)	不要
利用者の関与(UI)	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 : LOW
Score	2.6
Vector	AV:N/AC:H/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)	高
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	はい

Affected software configurations

Configuration1	or higher	or less	more than	less than
cpe:2.3:a:samba:samba::::::::	4.12.0			4.12.2
cpe:2.3:a:samba:samba::::::::	4.11.0			4.11.8
cpe:2.3:a:samba:samba::::::::	4.10.0			4.10.15

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:30:::::::*
cpe:2.3:o:fedoraproject:fedora:31:::::::*
cpe:2.3:o:fedoraproject:fedora:32:::::::*

Configuration3		or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.2:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html	Mailing List Third Party Advisory
3	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10700	Issue Tracking Third Party Advisory
4	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5KW3ZO35NVDO57JSBZHTQZOS3AIQ5QE/
5	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WG54NRMES2GTURZKZH6H4BGXCD3OMJDJ/
6	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y7DVGCHG3XPIBQ5ETGMGW7MXNOO4HFH4/
7	https://security.gentoo.org/glsa/202007-15	Third Party Advisory
8	https://www.samba.org/samba/security/CVE-2020-10700.html	Vendor Advisory
9	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00054.html	Mailing List Third Party Advisory
10	https://www.samba.org/samba/security/CVE-2020-10700.html	Vendor Advisory
11	https://security.gentoo.org/glsa/202007-15	Third Party Advisory
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y7DVGCHG3XPIBQ5ETGMGW7MXNOO4HFH4/
13	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WG54NRMES2GTURZKZH6H4BGXCD3OMJDJ/
14	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U5KW3ZO35NVDO57JSBZHTQZOS3AIQ5QE/
15	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10700	Issue Tracking Third Party Advisory
16	http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00002.html	Mailing List Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-416	解放済みメモリの使用	https://cwe.mitre.org/data/definitions/416.html

JVN Vulnerability Information

samba AD DC LDAP server における解放済みメモリの使用に関する脆弱性

Title	samba AD DC LDAP server における解放済みメモリの使用に関する脆弱性
Summary	samba AD DC LDAP server には、解放済みメモリの使用に関する脆弱性が存在します。
Possible impacts	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	May 5, 2020, midnight
Registration Date	June 4, 2020, 1:55 p.m.
Last Update	June 4, 2020, 1:55 p.m.

Affected System

Samba Project

Samba 4.10.15 未満

Samba 4.11.8 未満

Samba 4.12.2 未満

Fedora Project

Fedora

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-2020-10700	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10700
National Vulnerability Database (NVD)
2	CVE-2020-10700	https://nvd.nist.gov/vuln/detail/CVE-2020-10700

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-416	https://cwe.mitre.org/data/definitions/416.html

ベンダー情報

No	Name	URL
Fedora Update Notification
1	FEDORA-2020-9cf0b1c8f1	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5KW3ZO35NVDO57JSBZHTQZOS3AIQ5QE/
2	FEDORA-2020-c931060ab7	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WG54NRMES2GTURZKZH6H4BGXCD3OMJDJ/
3	FEDORA-2020-e244c98af5	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WG54NRMES2GTURZKZH6H4BGXCD3OMJDJ/
Samba Security Announcement
4	Use-after-free in Samba AD DC LDAP Server with ASQ	https://www.samba.org/samba/security/CVE-2020-10700.html

Change Log

No	Changed Details	Date of change
1	[2020年06月04日] 掲載	June 4, 2020, 1:55 p.m.