exploit the possibilities
Home Files News &[SERVICES_TAB]About Contact Add New

Ubuntu Security Notice USN-3944-1

Ubuntu Security Notice USN-3944-1
Posted Apr 11, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3944-1 - It was discovered that wpa_supplicant and hostapd were vulnerable to a side channel attack against EAP-pwd. A remote attacker could possibly use this issue to recover certain passwords. Mathy Vanhoef discovered that wpa_supplicant and hostapd incorrectly validated received scalar and element values in EAP-pwd-Commit messages. A remote attacker could possibly use this issue to perform a reflection attack and authenticate without the appropriate password. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2016-10743, CVE-2019-9495, CVE-2019-9498, CVE-2019-9499
SHA-256 | 5cd1105b2e54bffc81e4ab1e2261cd73be7cd130544105c2d7414ca3f2dcf45e

Ubuntu Security Notice USN-3944-1

Change Mirror Download
==========================================================================
Ubuntu Security Notice USN-3944-1
April 10, 2019

wpa vulnerabilities
==========================================================================

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

- Ubuntu 18.10
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS
- Ubuntu 14.04 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 and hostapd were vulnerable to a
side channel attack against EAP-pwd. A remote attacker could possibly use
this issue to recover certain passwords. (CVE-2019-9495)

Mathy Vanhoef discovered that wpa_supplicant and hostapd incorrectly
validated received scalar and element values in EAP-pwd-Commit messages. A
remote attacker could possibly use this issue to perform a reflection
attack and authenticate without the appropriate password. (CVE-2019-9497,
CVE-2019-9498, CVE-2019-9499)

It was discovered that hostapd incorrectly handled obtaining random
numbers. In rare cases where the urandom device isn't available, it would
fall back to using a low-quality PRNG. This issue only affected Ubuntu
14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-10743)

Update instructions:

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

Ubuntu 18.10:
hostapd 2:2.6-18ubuntu1.1
wpasupplicant 2:2.6-18ubuntu1.1

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

Ubuntu 16.04 LTS:
hostapd 2.4-0ubuntu6.4
wpasupplicant 2.4-0ubuntu6.4

Ubuntu 14.04 LTS:
hostapd 2.1-0ubuntu1.7
wpasupplicant 2.1-0ubuntu1.7

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

References:
https://usn.ubuntu.com/usn/usn-3944-1
CVE-2016-10743, CVE-2019-9495, CVE-2019-9497, CVE-2019-9498,
CVE-2019-9499

Package Information:
https://launchpad.net/ubuntu/+source/wpa/2:2.6-18ubuntu1.1
https://launchpad.net/ubuntu/+source/wpa/2:2.6-15ubuntu2.2
https://launchpad.net/ubuntu/+source/wpa/2.4-0ubuntu6.4
https://launchpad.net/ubuntu/+source/wpa/2.1-0ubuntu1.7
Login or Register to add favorites

File Archive:

March 2024

  • Su
  • Mo
  • Tu
  • We
  • Th
  • Fr
  • Sa
  • 1
    Mar 1st
    16 Files
  • 2
    Mar 2nd
    0 Files
  • 3
    Mar 3rd
    0 Files
  • 4
    Mar 4th
    32 Files
  • 5
    Mar 5th
    28 Files
  • 6
    Mar 6th
    42 Files
  • 7
    Mar 7th
    17 Files
  • 8
    Mar 8th
    13 Files
  • 9
    Mar 9th
    0 Files
  • 10
    Mar 10th
    0 Files
  • 11
    Mar 11th
    15 Files
  • 12
    Mar 12th
    19 Files
  • 13
    Mar 13th
    21 Files
  • 14
    Mar 14th
    38 Files
  • 15
    Mar 15th
    15 Files
  • 16
    Mar 16th
    0 Files
  • 17
    Mar 17th
    0 Files
  • 18
    Mar 18th
    10 Files
  • 19
    Mar 19th
    32 Files
  • 20
    Mar 20th
    46 Files
  • 21
    Mar 21st
    16 Files
  • 22
    Mar 22nd
    13 Files
  • 23
    Mar 23rd
    0 Files
  • 24
    Mar 24th
    0 Files
  • 25
    Mar 25th
    12 Files
  • 26
    Mar 26th
    31 Files
  • 27
    Mar 27th
    19 Files
  • 28
    Mar 28th
    42 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

© 2022 Packet Storm. All rights reserved.

Services
Security Services
Hosting By
Rokasec
close