CVE-2021-27803

Published: Feb 26, 2021Modified: Jun 17, 2026

7.5

Vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability: 1.6 / Impact: 5.9

Source: NVD

Description

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.

Affected (6)

Products: W1.fi: Wpa Supplicant · Fedoraproject: Fedora · Debian: Debian Linux

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
W1.fi Wpa Supplicant	From 1.0 to 2.10

Configuration B

3 vulnerable

Vulnerable Software	Affected Versions
Fedoraproject Fedora	Version 32
Fedoraproject Fedora	Version 33
Fedoraproject Fedora	Version 34

Configuration C

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 9.0

References (18)

http://www.openwall.com/lists/oss-security/2021/02/27/1

Source: cve@mitre.org

Mailing ListMitigationThird Party Advisory

https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/

Source: cve@mitre.org

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/

Source: cve@mitre.org

https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch

Source: cve@mitre.org

PatchVendor Advisory

https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt

Source: cve@mitre.org

MitigationVendor Advisory

https://www.debian.org/security/2021/dsa-4898

Source: cve@mitre.org

Third Party Advisory

https://www.openwall.com/lists/oss-security/2021/02/25/3

Source: cve@mitre.org

Mailing ListMitigationThird Party Advisory

http://www.openwall.com/lists/oss-security/2021/02/27/1

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListMitigationThird Party Advisory

https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListThird Party Advisory

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/

Source: af854a3a-2127-422b-91ae-364da2661108

https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt

Source: af854a3a-2127-422b-91ae-364da2661108

MitigationVendor Advisory

https://www.debian.org/security/2021/dsa-4898

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.openwall.com/lists/oss-security/2021/02/25/3

Source: af854a3a-2127-422b-91ae-364da2661108

Mailing ListMitigationThird Party Advisory

Timeline

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