Local User Enumeration Vulnerability in Linux-PAM by Red Hat
CVE-2015-3238

6.5MEDIUM

Key Information:

Vendor

Linux-pam

Status
Linux-pam
Vendor
CVE Published:
24 August 2015

What is CVE-2015-3238?

The vulnerability in the _unix_run_helper_binary function within the Linux-PAM framework allows local users to exploit password handling inefficiencies. Specifically, when the system is unable to access passwords directly, malicious users can leverage this to enumerate valid usernames. Additionally, passing excessively large passwords can result in denial of service, causing the system to hang. This vulnerability underscores the importance of robust password management and user authentication protocols to safeguard systems against local threats.

References

http://lists.fedoraproject.org/pipermail/package-announce...
vendor-advisoryx_refsource_FEDORA
http://rhn.redhat.com/errata/RHSA-2015-1640.html
vendor-advisoryx_refsource_REDHAT
http://www.openwall.com/lists/oss-security/2015/06/25/13
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.