CVE-2015-5224

Publication date 23 August 2017

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

Description

The mkostemp function in login-utils in util-linux when used incorrectly allows remote attackers to cause file name collision and possibly other attacks.

Read the notes from the security team

Status

Package Ubuntu Release Status
util-linux 15.10 wily
Not affected
15.04 vivid
Not affected
14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected

Notes

seth-arnold

wily and vivid are built with --disable-chfn-chsh which should disable the vulnerable code sections precise and trusty did not appear to have the vulnerable functions

Patch details

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

Package Patch details
util-linux

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Other references