Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.0910
wpa_supplicant security update
16 March 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: wpa_supplicant
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-27803
Reference: ESB-2021.0886
ESB-2021.0856
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:0816
https://access.redhat.com/errata/RHSA-2021:0818
Comment: This bulletin contains two (2) Red Hat security advisories.
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Red Hat Security Advisory
Synopsis: Important: wpa_supplicant security update
Advisory ID: RHSA-2021:0816-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0816
Issue date: 2021-03-15
CVE Names: CVE-2021-27803
=====================================================================
1. Summary:
An update for wpa_supplicant is now available for Red Hat Enterprise Linux
8.2 Extended Update Support.
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 BaseOS EUS (v. 8.2) - aarch64, ppc64le, s390x, 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 BaseOS EUS (v. 8.2):
Source:
wpa_supplicant-2.9-2.el8_2.1.src.rpm
aarch64:
wpa_supplicant-2.9-2.el8_2.1.aarch64.rpm
wpa_supplicant-debuginfo-2.9-2.el8_2.1.aarch64.rpm
wpa_supplicant-debugsource-2.9-2.el8_2.1.aarch64.rpm
ppc64le:
wpa_supplicant-2.9-2.el8_2.1.ppc64le.rpm
wpa_supplicant-debuginfo-2.9-2.el8_2.1.ppc64le.rpm
wpa_supplicant-debugsource-2.9-2.el8_2.1.ppc64le.rpm
s390x:
wpa_supplicant-2.9-2.el8_2.1.s390x.rpm
wpa_supplicant-debuginfo-2.9-2.el8_2.1.s390x.rpm
wpa_supplicant-debugsource-2.9-2.el8_2.1.s390x.rpm
x86_64:
wpa_supplicant-2.9-2.el8_2.1.x86_64.rpm
wpa_supplicant-debuginfo-2.9-2.el8_2.1.x86_64.rpm
wpa_supplicant-debugsource-2.9-2.el8_2.1.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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Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: wpa_supplicant security update
Advisory ID: RHSA-2021:0818-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0818
Issue date: 2021-03-15
CVE Names: CVE-2021-27803
=====================================================================
1. Summary:
An update for wpa_supplicant is now available for Red Hat Enterprise Linux
8.1 Extended Update Support.
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 BaseOS EUS (v. 8.1) - aarch64, ppc64le, s390x, 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 BaseOS EUS (v. 8.1):
Source:
wpa_supplicant-2.7-2.el8_1.1.src.rpm
aarch64:
wpa_supplicant-2.7-2.el8_1.1.aarch64.rpm
wpa_supplicant-debuginfo-2.7-2.el8_1.1.aarch64.rpm
wpa_supplicant-debugsource-2.7-2.el8_1.1.aarch64.rpm
ppc64le:
wpa_supplicant-2.7-2.el8_1.1.ppc64le.rpm
wpa_supplicant-debuginfo-2.7-2.el8_1.1.ppc64le.rpm
wpa_supplicant-debugsource-2.7-2.el8_1.1.ppc64le.rpm
s390x:
wpa_supplicant-2.7-2.el8_1.1.s390x.rpm
wpa_supplicant-debuginfo-2.7-2.el8_1.1.s390x.rpm
wpa_supplicant-debugsource-2.7-2.el8_1.1.s390x.rpm
x86_64:
wpa_supplicant-2.7-2.el8_1.1.x86_64.rpm
wpa_supplicant-debuginfo-2.7-2.el8_1.1.x86_64.rpm
wpa_supplicant-debugsource-2.7-2.el8_1.1.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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