CVE-2015-3238

CVE Details

Release Date:	2015-06-25
Impact:	Moderate	What is this?

Description

It was discovered that the _unix_run_helper_binary() function of PAM's unix_pam module could write to a blocking pipe, possibly causing the function to become unresponsive. An attacker able to supply large passwords to the unix_pam module could use this flaw to enumerate valid user accounts, or cause a denial of service on the system.

See more information about CVE-2015-3238 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	6.4
Vector String:	AV:N/AC:L/Au:N/C:P/I:N/A:P
Version:	2.0
Attack Vector:	Network
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (pam)	ELSA-2015-1640	2015-08-18
Oracle Linux version 7 (pam)	ELSA-2015-1640	2015-08-18
Oracle VM version 3.3 (pam)	OVMSA-2015-0117	2015-08-18
Oracle VM version 3.4 (pam)	OVMSA-2015-0117	2015-08-18