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CVE-2015-3238

Published: 24 August 2015

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.

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
pam
Launchpad, Ubuntu, Debian
precise
Released (1.1.3-7ubuntu2.1)
trusty
Released (1.1.8-1ubuntu2.1)
upstream
Released (1.1.8-3.2)
utopic Ignored
(end of life)
vivid Ignored
(end of life)
wily
Released (1.1.8-3.1ubuntu3.1)
xenial
Released (1.1.8-3.2ubuntu2)
yakkety
Released (1.1.8-3.2ubuntu2)
zesty
Released (1.1.8-3.2ubuntu2)
Patches:
upstream: https://git.fedorahosted.org/cgit/linux-pam.git/commit/?id=e89d4c97385ff8180e6e81e84c5aa745daf28a79

Severity score breakdown

Parameter Value
Base score 6.5
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