exploit the possibilities

Ubuntu Security Notice USN-4734-1

Ubuntu Security Notice USN-4734-1
Posted Feb 12, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4734-1 - It was discovered that wpa_supplicant did not properly handle P2P group information in some situations, leading to a heap overflow. A physically proximate attacker could use this to cause a denial of service or possibly execute arbitrary code. It was discovered that hostapd did not properly handle UPnP subscribe messages in some circumstances. An attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary
systems | linux, ubuntu
advisories | CVE-2020-12695, CVE-2021-0326
MD5 | be6482b8e15c1151887efd102bd3eefa

Ubuntu Security Notice USN-4734-1

Change Mirror Download
=========================================================================
Ubuntu Security Notice USN-4734-1
February 11, 2021

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

- Ubuntu 20.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in wpa_supplicant and hostapd.

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

Details:

It was discovered that wpa_supplicant did not properly handle P2P
(Wi-Fi Direct) group information in some situations, leading to a
heap overflow. A physically proximate attacker could use this to cause a
denial of service or possibly execute arbitrary code. (CVE-2021-0326)

It was discovered that hostapd did not properly handle UPnP subscribe
messages in some circumstances. An attacker could use this to cause a
denial of service. (CVE-2020-12695)

Update instructions:

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

Ubuntu 20.10:
hostapd 2:2.9-1ubuntu8.1
wpasupplicant 2:2.9-1ubuntu8.1

Ubuntu 20.04 LTS:
hostapd 2:2.9-1ubuntu4.2
wpasupplicant 2:2.9-1ubuntu4.2

Ubuntu 18.04 LTS:
hostapd 2:2.6-15ubuntu2.7
wpasupplicant 2:2.6-15ubuntu2.7

Ubuntu 16.04 LTS:
hostapd 1:2.4-0ubuntu6.7
wpasupplicant 2.4-0ubuntu6.7

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

References:
https://usn.ubuntu.com/4734-1
CVE-2020-12695, CVE-2021-0326

Package Information:
https://launchpad.net/ubuntu/+source/wpa/2:2.9-1ubuntu8.1
https://launchpad.net/ubuntu/+source/wpa/2:2.9-1ubuntu4.2
https://launchpad.net/ubuntu/+source/wpa/2:2.6-15ubuntu2.7
https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu6.7
Login or Register to add favorites

File Archive:

March 2021

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    19 Files
  • 2
    Mar 2nd
    15 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    0 Files
  • 5
    Mar 5th
    0 Files
  • 6
    Mar 6th
    0 Files
  • 7
    Mar 7th
    0 Files
  • 8
    Mar 8th
    0 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    0 Files
  • 12
    Mar 12th
    0 Files
  • 13
    Mar 13th
    0 Files
  • 14
    Mar 14th
    0 Files
  • 15
    Mar 15th
    0 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    0 Files
  • 19
    Mar 19th
    0 Files
  • 20
    Mar 20th
    0 Files
  • 21
    Mar 21st
    0 Files
  • 22
    Mar 22nd
    0 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    0 Files
  • 26
    Mar 26th
    0 Files
  • 27
    Mar 27th
    0 Files
  • 28
    Mar 28th
    0 Files
  • 29
    Mar 29th
    0 Files
  • 30
    Mar 30th
    0 Files
  • 31
    Mar 31st
    0 Files

Top Authors In Last 30 Days

File Tags

Systems

packet storm

© 2020 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close