Resource management error in wpa_supplicant - CVE-2021-27803

Vulnerability identifier: #VU55968

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2021-27803

CWE-ID: CWE-399

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources when processing P2P (Wi-Fi Direct) provision discovery requests in p2p/p2p_pd in wpa_supplicant. A remote attacker within radio range can send specially crafted request to the system and perform a denial of service (DoS) attack.

wpa_supplicant
Debian Linux
SUSE CaaS Platform
SUSE Manager Server
SUSE Manager Retail Branch Server
SUSE Manager Proxy
SUSE Enterprise Storage
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
SUSE OpenStack Cloud
Red Hat Enterprise Linux for Power, big endian
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for x86_64
HPE Helion Openstack
SUSE OpenStack Cloud Crowbar
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux Server - TUS
SUSE Linux Enterprise Server for SAP
SUSE Linux Enterprise Server
Slackware Linux
Ubuntu
SUSE Linux Enterprise High Performance Computing
SUSE Linux Enterprise Module for Basesystem
openEuler
Fedora
wpasupplicant (Ubuntu package)
supplicant (Red Hat package)
wpa_supplicant-debugsource
wpa_supplicant
wpa_supplicant-debuginfo
wpa_supplicant-gui
wpa_supplicant-help
wpa (Debian package)
Data Computing Appliance (DCA)
Juniper Junos Space

Install update from vendor's website.

wpa_supplicant - update to 2.10
wpasupplicant (Ubuntu package) - addressed in versions 2.1-0ubuntu1.7+esm4, 2.4-0ubuntu6.8, 2:2.6-15ubuntu2.8, 2:2.9-1ubuntu4.3, 2:2.9-1ubuntu8.2
supplicant (Red Hat package) - addressed in versions 2.6-12.el7_9.2, 2.7-2.el8_1.1, 2.9-2.el8_2.1, 2.9-2.el8_3.1
wpa_supplicant-debugsource - addressed in versions 2.6-15.16.1, 2.9-4.26.1, 2.9-23.9.2
wpa_supplicant - addressed in versions 2.6-15.16.1, 2.9-4.26.1, 2.9-23.9.2
wpa_supplicant-debuginfo - addressed in versions 2.6-15.16.1, 2.9-4.26.1, 2.9-23.9.2
wpa_supplicant-gui - update to 2.6-28
wpa_supplicant-help - update to 2.6-28
wpa_supplicant-debugsource - update to 2.6-28
wpa_supplicant-debuginfo - update to 2.6-28
wpa_supplicant - update to 2.6-28
wpa (Debian package) - update to 2:2.7+git20190128+0c1e29f-6+deb10u3
wpa_supplicant - addressed in versions 2.9-6.fc32, 2.9-8.fc33, 2.9-12.fc34
Data Computing Appliance (DCA) - update to 4.3.0.0
Juniper Junos Space - update to 21.2R1

• https://w1.fi/security/2021-1/wpa_supplicant-p2p-provision-discovery-processing-vulnerability.txt
• https://w1.fi/security/2021-1/0001-P2P-Fix-a-corner-case-in-peer-addition-based-on-PD-R.patch
• https://www.openwall.com/lists/oss-security/2021/02/25/3
• http://www.openwall.com/lists/oss-security/2021/02/27/1
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KOGP2VIVVXXQ6CZ2HU4DKGPDB4WR24XF/
• https://lists.debian.org/debian-lts-announce/2021/03/msg00003.html
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IZGUR5XFHATVXTRAEJMODS7ROYHA56NX/
• https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SEHS2CFGH3KCSNPHBHNGN5SGV6QPMLZ4/
• https://www.debian.org/security/2021/dsa-4898

• Denial of service in wpa_supplicant
• Multiple vulnerabilities in Junos Space
• Slackware update for wpa_supplicant
• Ubuntu update for wpa
• Ubuntu update for wpa
• Debian update for wpa
• Multiple vulnerabilities in Dell EMC Data Computing Appliance (DCA)
• SUSE update for wpa_supplicant
• SUSE update for wpa_supplicant
• SUSE update for wpa_supplicant
• openEuler update for wpa_supplicant
• Red Hat Enterprise Linux 7 update for wpa_supplicant
• Red Hat Enterprise Linux 8 update for wpa_supplicant
• Red Hat Enterprise Linux 8 update for wpa_supplicant
• Red Hat Enterprise Linux 8 update for wpa_supplicant
• Fedora 32 update for wpa_supplicant
• Fedora 34 update for wpa_supplicant
• Fedora 33 update for wpa_supplicant