CVE-2015-3238

Publication date 24 August 2015

Last updated 25 August 2025

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

Description

The _unix_run_helper_binary function in the pam_unix module in Linux-PAM (aka pam) before 1.2.1, when unable to directly access passwords, allows local users to enumerate usernames or cause a denial of service (hang) via a large password.

Status

Package Ubuntu Release Status
pam 17.04 zesty
Fixed 1.1.8-3.2ubuntu2
16.10 yakkety
Fixed 1.1.8-3.2ubuntu2
16.04 LTS xenial
Fixed 1.1.8-3.2ubuntu2
15.10 wily
Fixed 1.1.8-3.1ubuntu3.1
15.04 vivid Ignored end of life
14.10 utopic Ignored end of life
14.04 LTS trusty
Fixed 1.1.8-1ubuntu2.1
12.04 LTS precise
Fixed 1.1.3-7ubuntu2.1

Patch details

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

Package Patch details
pam

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact Low
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

References

Related Ubuntu Security Notices (USN)

Other references