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CVE-2021-27803

Published: 26 February 2021

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.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
wpa
Launchpad, Ubuntu, Debian
bionic
Released (2:2.6-15ubuntu2.8)
focal
Released (2:2.9-1ubuntu4.3)
groovy
Released (2:2.9-1ubuntu8.2)
trusty
Released (2.1-0ubuntu1.7+esm4)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
upstream
Released (2:2.9.0-21)
xenial
Released (2.4-0ubuntu6.8)
Patches:
upstream: https://w1.fi/cgit/hostap/commit/src/p2p/p2p_pd.c?id=8460e3230988ef2ec13ce6b69b687e941f6cdb32
upstream: https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Adjacent
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H