Protect yourself against future threats.
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AUSCERT External Security Bulletin Redistribution
ESB-2021.1382
wpa security update
23 April 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: wpa
Publisher: Debian
Operating System: Debian GNU/Linux
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-27803 CVE-2021-0326 CVE-2020-12695
Reference: ESB-2021.0763
ESB-2021.0752
ESB-2021.0575
ESB-2021.0519
Original Bulletin:
https://lists.debian.org/debian-security-announce/2021/msg00079.html
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Debian Security Advisory DSA-4898-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
April 22, 2021 https://www.debian.org/security/faq
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Package : wpa
CVE ID : CVE-2020-12695 CVE-2021-0326 CVE-2021-27803
Debian Bug : 976106 981971
Several vulnerabilities have been discovered in wpa_supplicant and
hostapd.
CVE-2020-12695
It was discovered that hostapd does not properly handle UPnP
subscribe messages under certain conditions, allowing an attacker to
cause a denial of service.
CVE-2021-0326
It was discovered that wpa_supplicant does not properly process P2P
(Wi-Fi Direct) group information from active group owners. An
attacker within radio range of the device running P2P could take
advantage of this flaw to cause a denial of service or potentially
execute arbitrary code.
CVE-2021-27803
It was discovered that wpa_supplicant does not properly process
P2P (Wi-Fi Direct) provision discovery requests. An attacker
within radio range of the device running P2P could take advantage
of this flaw to cause a denial of service or potentially execute
arbitrary code.
For the stable distribution (buster), these problems have been fixed in
version 2:2.7+git20190128+0c1e29f-6+deb10u3.
We recommend that you upgrade your wpa packages.
For the detailed security status of wpa please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/wpa
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
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