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Vulnerability Details : CVE-2015-3238

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.
Publish Date : 2015-08-24 Last Update Date : 2019-01-03
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- CVSS Scores & Vulnerability Types

CVSS Score
5.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceObtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2015:1640: pam security update (Moderate) oval:com.redhat.rhsa:def:20151640 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2015-3238

# Product Type Vendor Product Version Update Edition Language
1 Application Linux-pam Linux-pam 1.1.8 Version Details Vulnerabilities
2 Application Oracle Sparc-opl Service Processor 1121 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux-pam Linux-pam 1
Oracle Sparc-opl Service Processor 1

- References For CVE-2015-3238

https://www.trustwave.com/Resources/SpiderLabs-Blog/Username-Enumeration-against-OpenSSH-SELinux-with-CVE-2015-3238/
http://www.ubuntu.com/usn/USN-2935-3
UBUNTU USN-2935-3
http://lists.fedoraproject.org/pipermail/package-announce/2015-July/161350.html
FEDORA FEDORA-2015-10848
https://security.gentoo.org/glsa/201605-05
GENTOO GLSA-201605-05
https://www.trustwave.com/Resources/Security-Advisories/Advisories/TWSL2015-011/?fid=6551
https://bugzilla.redhat.com/show_bug.cgi?id=1228571 CONFIRM
http://lists.fedoraproject.org/pipermail/package-announce/2015-June/161249.html
FEDORA FEDORA-2015-10830
http://rhn.redhat.com/errata/RHSA-2015-1640.html
REDHAT RHSA-2015:1640
http://www.ubuntu.com/usn/USN-2935-1
UBUNTU USN-2935-1
http://www.ubuntu.com/usn/USN-2935-2
UBUNTU USN-2935-2
http://www.securityfocus.com/bid/75428
BID 75428 Linux-PAM '_unix_run_helper_binary()' Function Denial of Service Vulnerability Release Date:2016-11-22
http://www.openwall.com/lists/oss-security/2015/06/25/13
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 CONFIRM

- Metasploit Modules Related To CVE-2015-3238

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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