CVE-2021-27803

HIGH

wpa_supplicant 1.0-2.9 - Denial of Service or Remote Code Execution via P2P Provision Discovery Request

Title source: llm

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.

References (9)

Core 9

Core References

Mailing List, Mitigation, Third Party Advisory x_refsource_misc

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

Mitigation, Vendor Advisory x_refsource_misc

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

Patch, Vendor Advisory x_refsource_misc

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

Mailing List, Mitigation, Third Party Advisory mailing-list x_refsource_mlist

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

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

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

Mailing List, Third Party Advisory mailing-list x_refsource_mlist

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

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

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

Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora

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

Third Party Advisory vendor-advisory x_refsource_debian

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

Scores

CVSS v3 7.5

EPSS 0.0118

EPSS Percentile 64.2%

Attack Vector ADJACENT_NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

Status published

Products (6)

debian/debian_linux 9.0

debian/debian_linux 10.0

fedoraproject/fedora 32

fedoraproject/fedora 33

fedoraproject/fedora 34

w1.fi/wpa_supplicant 1.0 - 2.10

Published Feb 26, 2021

Tracked Since Feb 18, 2026