NVD Vulnerability Detail

CVE-2019-16746

Summary	An issue was discovered in net/wireless/nl80211.c in the Linux kernel through 5.2.17. It does not check the length of variable elements in a beacon head, leading to a buffer overflow.
Publication Date	Sept. 24, 2019, 3:15 p.m.
Registration Date	Jan. 26, 2021, 11:40 a.m.
Last Update	Nov. 21, 2024, 1:31 p.m.

CVSS3.1 : CRITICAL
スコア	9.8
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)	高
可用性への影響(A)	高

CVSS2.0 : HIGH
Score	7.5
Vector	AV:N/AC:L/Au:N/C:P/I:P/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)	低
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:o:linux:linux_kernel::::::::	2.6.25			3.16.79
cpe:2.3:o:linux:linux_kernel::::::::	3.17			4.4.197
cpe:2.3:o:linux:linux_kernel::::::::	4.5			4.9.197
cpe:2.3:o:linux:linux_kernel::::::::	4.10			4.14.149
cpe:2.3:o:linux:linux_kernel::::::::	4.15			4.19.79
cpe:2.3:o:linux:linux_kernel::::::::	4.20			5.3.6

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:8.0:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts:::
cpe:2.3:o:canonical:ubuntu_linux:19.04:::::::*
cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::

Configuration4	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:30:::::::*
cpe:2.3:o:opensuse:leap:15.1:::::::*

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html	Mailing List Third Party Advisory
2	http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html	Mailing List Third Party Advisory
3	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html	Mailing List Third Party Advisory
4	http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html	Mailing List Third Party Advisory
5	http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html	Third Party Advisory VDB Entry
6	http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html	Third Party Advisory VDB Entry
7	https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html	Mailing List Third Party Advisory
8	https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html	Mailing List Third Party Advisory
9	https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html	Mailing List Third Party Advisory
10	https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html	Mailing List Third Party Advisory
11	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2JNO46TVL7/
12	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TASE2ESEZAER6DTZH3DJ4K2JNO46TVL7/
13	https://marc.info/?l=linux-wireless&m=156901391225058&w=2	Mailing List Patch Third Party Advisory
14	https://marc.info/?l=linux-wireless&m=156901391225058&w=2	Mailing List Patch Third Party Advisory
15	https://seclists.org/bugtraq/2019/Nov/11	Mailing List Third Party Advisory
16	https://seclists.org/bugtraq/2019/Nov/11	Mailing List Third Party Advisory
17	https://security.netapp.com/advisory/ntap-20191031-0005/	Third Party Advisory
18	https://security.netapp.com/advisory/ntap-20191031-0005/	Third Party Advisory
19	https://usn.ubuntu.com/4183-1/	Third Party Advisory
20	https://usn.ubuntu.com/4183-1/	Third Party Advisory
21	https://usn.ubuntu.com/4186-1/	Third Party Advisory
22	https://usn.ubuntu.com/4186-1/	Third Party Advisory
23	https://usn.ubuntu.com/4209-1/	Third Party Advisory
24	https://usn.ubuntu.com/4209-1/	Third Party Advisory
25	https://usn.ubuntu.com/4210-1/	Third Party Advisory
26	https://usn.ubuntu.com/4210-1/	Third Party Advisory
27	https://www.oracle.com/security-alerts/cpuApr2021.html	Third Party Advisory
28	https://www.oracle.com/security-alerts/cpuApr2021.html	Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-120	古典的バッファオーバーフロー	https://cwe.mitre.org/data/definitions/120.html

JVN Vulnerability Information

Linux Kernel における古典的バッファオーバーフローの脆弱性

Title	Linux Kernel における古典的バッファオーバーフローの脆弱性
Summary	Linux Kernel には、古典的バッファオーバーフローの脆弱性が存在します。
Possible impacts	情報を取得される、情報を改ざんされる、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	Sept. 20, 2019, midnight
Registration Date	Sept. 26, 2019, 9:42 a.m.
Last Update	Sept. 26, 2019, 9:42 a.m.

Affected System

Linux

Linux Kernel 5.2.17 まで

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-2019-16746	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16746
National Vulnerability Database (NVD)
2	CVE-2019-16746	https://nvd.nist.gov/vuln/detail/CVE-2019-16746

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-120	https://cwe.mitre.org/data/definitions/120.html

ベンダー情報

No	Name	URL
Linux Kernel
1	Linux Kernel Archives	http://www.kernel.org
MARC: Mailing list ARChives
2	[PATCH 1/2] nl80211: validate beacon head	https://marc.info/?l=linux-wireless&m=156901391225058&w=2

Change Log

No	Changed Details	Date of change
1	[2019年09月26日] 掲載	Sept. 26, 2019, 9:42 a.m.