NVD Vulnerability Detail

CVE-2020-10942

Summary	In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.
Publication Date	March 25, 2020, 7:15 a.m.
Registration Date	Jan. 26, 2021, 11:50 a.m.
Last Update	Nov. 21, 2024, 1:56 p.m.

CVSS3.1 : MEDIUM
スコア	5.3
Vector	CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	高
攻撃に必要な特権レベル(PR)	低
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)	低
可用性への影響(A)	高

CVSS2.0 : MEDIUM
Score	5.4
Vector	AV:L/AC:M/Au:N/C:N/I:P/A:C
攻撃元区分(AV)	ローカル
攻撃条件の複雑さ(AC)	中
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)	低
可用性への影響(A)	高
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::::::::					5.5.8

Configuration2		or higher	or less	more than	less than
cpe:2.3:o:opensuse:leap:15.1:::::::*

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:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration4	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:14.04::::esm:::
cpe:2.3:o:canonical:ubuntu_linux:19.10:::::::*
cpe:2.3:o:canonical:ubuntu_linux:16.04::::esm:::

Related information, measures and tools

No	URL	タグ
1	http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html	Mailing List Third Party Advisory
2	http://www.openwall.com/lists/oss-security/2020/04/15/4	Mailing List Third Party Advisory
3	https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8	Release Notes Vendor Advisory
4	https://git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64	Patch Third Party Advisory
5	https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html	Mailing List Third Party Advisory
6	https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	Mailing List Third Party Advisory
7	https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html	Mailing List Third Party Advisory
8	https://lkml.org/lkml/2020/2/15/125	Exploit Patch Vendor Advisory
9	https://security.netapp.com/advisory/ntap-20200403-0003/	Third Party Advisory
10	https://usn.ubuntu.com/4342-1/	Third Party Advisory
11	https://usn.ubuntu.com/4344-1/	Third Party Advisory
12	https://usn.ubuntu.com/4345-1/	Third Party Advisory
13	https://usn.ubuntu.com/4364-1/	Third Party Advisory
14	https://www.debian.org/security/2020/dsa-4667	Third Party Advisory
15	https://www.debian.org/security/2020/dsa-4698	Third Party Advisory
16	http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html	Mailing List Third Party Advisory
17	https://www.debian.org/security/2020/dsa-4698	Third Party Advisory
18	https://www.debian.org/security/2020/dsa-4667	Third Party Advisory
19	https://usn.ubuntu.com/4364-1/	Third Party Advisory
20	https://usn.ubuntu.com/4345-1/	Third Party Advisory
21	https://usn.ubuntu.com/4344-1/	Third Party Advisory
22	https://usn.ubuntu.com/4342-1/	Third Party Advisory
23	https://security.netapp.com/advisory/ntap-20200403-0003/	Third Party Advisory
24	https://lkml.org/lkml/2020/2/15/125	Exploit Patch Vendor Advisory
25	https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html	Mailing List Third Party Advisory
26	https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html	Mailing List Third Party Advisory
27	https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html	Mailing List Third Party Advisory
28	https://git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64	Patch Third Party Advisory
29	https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8	Release Notes Vendor Advisory
30	http://www.openwall.com/lists/oss-security/2020/04/15/4	Mailing List Third Party Advisory

Common Vulnerabilities List

No	CWE	Name	URL
1	CWE-787	境界外書き込み	https://cwe.mitre.org/data/definitions/787.html

JVN Vulnerability Information

Linux Kernel における境界外書き込みに関する脆弱性

Title	Linux Kernel における境界外書き込みに関する脆弱性
Summary	Linux Kernel には、境界外書き込み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	Feb. 15, 2020, midnight
Registration Date	April 8, 2020, 5:45 p.m.
Last Update	April 8, 2020, 5:45 p.m.

Affected System

Linux

Linux Kernel 5.5.8 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-2020-10942	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10942
National Vulnerability Database (NVD)
2	CVE-2020-10942	https://nvd.nist.gov/vuln/detail/CVE-2020-10942

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-787	https://cwe.mitre.org/data/definitions/787.html

ベンダー情報

No	Name	URL
ChangeLog
1	kvm: nVMX: VMWRITE checks unsupported field before read-only field	https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.5.8
Linux Kernel
2	Linux Kernel Archives	http://www.kernel.org
Linux kernel source tree
3	vhost: Check docket sk_family instead of call getname	https://git.kernel.org/linus/42d84c8490f9f0931786f1623191fcab397c3d64
LKML.ORG
4	Re: kernel panic: stack is corrupted in vhost_net_ioctl	https://lkml.org/lkml/2020/2/15/125

Change Log

No	Changed Details	Date of change
1	[2020年04月08日] 掲載	April 8, 2020, 5:45 p.m.