National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2015-3238 Detail

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.

Source:  MITRE      Last Modified:  08/24/2015

Quick Info

CVE Dictionary Entry:
CVE-2015-3238
Original release date:
08/24/2015
Last revised:
12/02/2016
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
6.5 Medium
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L (legend)
Impact Score:
2.5
Exploitability Score:
3.9
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
Low
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
Low
Integrity (I):
None
Availability (A):
Low
CVSS Severity (version 2.0):
CVSS v2 Base Score:
5.8 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:N/A:P) (legend)
Impact Subscore:
4.9
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161350.html External Source FEDORA FEDORA-2015-10848
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161249.html External Source FEDORA FEDORA-2015-10830
http://rhn.redhat.com/errata/RHSA-2015-1640.html Vendor Advisory External Source REDHAT RHSA-2015:1640
http://www.openwall.com/lists/oss-security/2015/06/25/13 External Source MLIST [oss-security] 20150625 Linux-PAM 1.2.1 released to address CVE-2015-3238
http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html External Source CONFIRM http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html
http://www.securityfocus.com/bid/75428 External Source BID 75428
http://www.ubuntu.com/usn/USN-2935-1 External Source UBUNTU USN-2935-1
http://www.ubuntu.com/usn/USN-2935-2 External Source UBUNTU USN-2935-2
http://www.ubuntu.com/usn/USN-2935-3 External Source UBUNTU USN-2935-3
https://bugzilla.redhat.com/show_bug.cgi?id=1228571 External Source CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=1228571
https://security.gentoo.org/glsa/201605-05 External Source GENTOO GLSA-201605-05
https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551 Exploit External Source MISC https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551
https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/ Exploit External Source MISC https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 8 change records found - show changes