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Debian: Security Advisory for wpa (DSA-4898-1)

Information

Severity

Severity

High

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

7.9

CVSSv2 Vector

CVSSv2 Vector

AV:A/AC:M/Au:N/C:C/I:C/A:C

Solution Type

Solution Type

Vendor Patch

Created

Created

1 year ago

Modified

Modified

1 year ago

Summary

The remote host is missing an update for the 'wpa' package(s) announced via the DSA-4898-1 advisory.

Insight

Insight

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.

Affected Software

Affected Software

'wpa' package(s) on Debian Linux.

Detection Method

Detection Method

Checks if a vulnerable package version is present on the target host.

Solution

Solution

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.

Common Vulnerabilities and Exposures (CVE)

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1. Download Multipass

sudo snap install multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

3. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. If you don’t have it already, install Brew. Then, to install Multipass simply execute:

brew install --cask multipass

2. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04 && multipass shell mageni

2. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash

1. Download the installer for Windows

Note: You need Windows 10 Pro/Enterprise/Education v 1803 or later, or any Windows 10 with VirtualBox

2. Ensure your network is private

Make sure your local network is designated as private, otherwise Windows prevents Multipass from starting.

3. Run the installer

You need to allow the installer to gain Administrator privileges.

4. Launch a multipass instance

multipass launch -c 2 -m 6G -d 20G -n mageni 20.04

5. Log into the multipass instance

multipass shell mageni

6. Install Mageni

curl -sL https://www.mageni.net/installation | sudo bash