CVE-2016-10743

Publication date 23 March 2019

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

hostapd before 2.6 does not prevent use of the low-quality PRNG that is reached by an os_random() function call.

Read the notes from the security team

Status

Package Ubuntu Release Status
wpa 18.10 cosmic
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Fixed 2.4-0ubuntu6.4
14.04 LTS trusty
Fixed 2.1-0ubuntu1.7

Notes

mdeslaur

low-quality PRNG is only used as a fallback if /dev/urandom can't be opened

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
wpa

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-3944-1
    • wpa_supplicant and hostapd vulnerabilities
    • 10 April 2019

Other references