NVD Vulnerability Detail

CVE-2021-27803

Summary	A vulnerability was discovered in how p2p/p2p_pd.c in wpa_supplicant before 2.10 processes P2P (Wi-Fi Direct) provision discovery requests. It could result in denial of service or other impact (potentially execution of arbitrary code), for an attacker within radio range.
Publication Date	Feb. 27, 2021, 8:15 a.m.
Registration Date	Feb. 27, 2021, 12:03 p.m.
Last Update	Nov. 21, 2024, 2:58 p.m.

CVSS3.1 : HIGH
スコア	7.5
Vector	CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
攻撃元区分(AV)	隣接
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)	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 : MEDIUM
Score	5.4
Vector	AV:A/AC:M/Au:N/C:P/I:P/A:P
攻撃元区分(AV)	隣接
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)	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:a:w1.fi:wpa_supplicant::::::::		1.0			2.10

Configuration2	or higher	or less	more than	less than
cpe:2.3:o:fedoraproject:fedora:32:::::::*
cpe:2.3:o:fedoraproject:fedora:33:::::::*
cpe:2.3:o:fedoraproject:fedora:34:::::::*

Configuration3	or higher	or less	more than	less than
cpe:2.3:o:debian:debian_linux:9.0:::::::*
cpe:2.3:o:debian:debian_linux:10.0:::::::*

Related information, measures and tools

No	URL	タグ
1	http://www.openwall.com/lists/oss-security/2021/02/27/1	Mailing List Mitigation Third Party Advisory
2	http://www.openwall.com/lists/oss-security/2021/02/27/1	Mailing List Mitigation Third Party Advisory
3	https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html	Mailing List Third Party Advisory
4	https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html	Mailing List Third Party Advisory
5	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
6	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
7	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
8	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
9	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
10	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
11	https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch	Patch Vendor Advisory
12	https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch	Patch Vendor Advisory
13	https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt	Mitigation Vendor Advisory
14	https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt	Mitigation Vendor Advisory
15	https://www.debian.org/security/2021/dsa-4898	Third Party Advisory
16	https://www.debian.org/security/2021/dsa-4898	Third Party Advisory
17	https://www.openwall.com/lists/oss-security/2021/02/25/3	Mailing List Mitigation Third Party Advisory
18	https://www.openwall.com/lists/oss-security/2021/02/25/3	Mailing List Mitigation Third Party Advisory

Common Vulnerabilities List

JVN Vulnerability Information

wpa_supplicant における脆弱性

Title	wpa_supplicant における脆弱性
Summary	wpa_supplicant には、不特定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	Feb. 25, 2021, midnight
Registration Date	Nov. 17, 2021, 4:28 p.m.
Last Update	Nov. 17, 2021, 4:28 p.m.

Affected System

Debian

Debian GNU/Linux

Fedora Project

Fedora

w1.fi

wpa_supplicant 2.10 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-2021-27803	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27803
National Vulnerability Database (NVD)
2	CVE-2021-27803	https://nvd.nist.gov/vuln/detail/CVE-2021-27803

CWE (共通脆弱性タイプ一覧)

No	Name	URL
JVNDB
1	CWE-noinfo	https://www.ipa.go.jp/security/vuln/CWE.html#CWEnoinfo

ベンダー情報

No	Name	URL
Debian
1	[SECURITY] [DLA 2581-1] wpa security update	https://lists.debian.org/debian-lts-announce/2021/03/msg00012.html
Debian Security Advisory
2	DSA-4898-1	https://www.debian.org/security/2021/dsa-4898
Fedora Update Notification
3	FEDORA-2021-3430f96019	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
4	FEDORA-2021-99cad2b81f	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
5	FEDORA-2021-9b00febe54	https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
w1.fi
6	wpa_supplicant P2P provision discovery processing vulnerability	https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt

Change Log

No	Changed Details	Date of change
1	[2021年11月17日] 掲載	Nov. 17, 2021, 4:28 p.m.