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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: wpa_supplicant security update
Advisory ID:       RHSA-2021:0808-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0808
Issue date:        2021-03-10
CVE Names:         CVE-2021-27803 
=====================================================================

1. Summary:

An update for wpa_supplicant is now available for Red Hat Enterprise Linux
7.

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.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64

3. 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.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1933361 - CVE-2021-27803 wpa_supplicant: Use-after-free in P2P provision
 discovery processing

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
wpa_supplicant-2.6-12.el7_9.2.src.rpm

x86_64:
wpa_supplicant-2.6-12.el7_9.2.x86_64.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
wpa_supplicant-2.6-12.el7_9.2.src.rpm

x86_64:
wpa_supplicant-2.6-12.el7_9.2.x86_64.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
wpa_supplicant-2.6-12.el7_9.2.src.rpm

ppc64:
wpa_supplicant-2.6-12.el7_9.2.ppc64.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.ppc64.rpm

ppc64le:
wpa_supplicant-2.6-12.el7_9.2.ppc64le.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.ppc64le.rpm

s390x:
wpa_supplicant-2.6-12.el7_9.2.s390x.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.s390x.rpm

x86_64:
wpa_supplicant-2.6-12.el7_9.2.x86_64.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
wpa_supplicant-2.6-12.el7_9.2.src.rpm

x86_64:
wpa_supplicant-2.6-12.el7_9.2.x86_64.rpm
wpa_supplicant-debuginfo-2.6-12.el7_9.2.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-27803
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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