RHSA-2021:0809 — Security Advisory

Red Hat Security Advisory: wpa_supplicant security update

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Severity

Important

Red Hat Product Security

RHEL 8

Products

Official CSAF product identity

Published · March 11, 2021

Updated · December 19, 2025

Topic

An update for wpa_supplicant is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The wpa_supplicant packages contain an 802.1X Supplicant with support for WEP, WPA, WPA2 (IEEE 802.11i / RSN), and various EAP authentication methods. They implement key negotiation with a WPA Authenticator for client stations and controls the roaming and IEEE 802.11 authentication and association of the WLAN driver.

Security Fix(es):

  • wpa_supplicant: Use-after-free in P2P provision discovery processing (CVE-2021-27803)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Related CVEs

RHSA-2021:0809 — Red Hat Security Advisory: wpa_supplicant security update | PulseLinux