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Sicherheit: Ausführen beliebiger Kommandos in wpa_supplicant (Aktualisierung)
Aktuelle Meldungen Distributionen
Name: Ausführen beliebiger Kommandos in wpa_supplicant (Aktualisierung)
ID: USN-4757-2
Distribution: Ubuntu
Plattformen: Ubuntu 14.04 ESM
Datum: Do, 4. März 2021, 22:47
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27803
Applikationen: wpa_supplicant
Update von: Ausführen beliebiger Kommandos in wpa_supplicant

Originalnachricht

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From: Avital Ostromich <avital.ostromich@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <59d392a6-d11f-61c6-d47f-c98b578c9ca5@canonical.com>
Subject: [USN-4757-2] wpa_supplicant and hostapd vulnerability

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==========================================================================
Ubuntu Security Notice USN-4757-2
March 04, 2021

wpa vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 ESM

Summary:

wpa_supplicant could be made to crash or run programs if it received
specially crafted network traffic.

Software Description:
- wpa: client support for WPA and WPA2

Details:

USN-4757-1 fixed a vulnerability in wpa_supplicant and hostapd. This update
provides the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that wpa_supplicant did not properly handle P2P
(Wi-Fi Direct) provision discovery requests in some situations. A
physically proximate attacker could use this to cause a denial of service
or possibly execute arbitrary code.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 ESM:
wpasupplicant 2.1-0ubuntu1.7+esm4

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-4757-2
https://ubuntu.com/security/notices/USN-4757-1
CVE-2021-27803



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