National Cyber-Alert System
Vulnerability Summary for CVE-2007-5939
Original release date:12/06/2007
Last revised:11/15/2008
Source:
US-CERT/NIST
Overview
The gss_userok function in appl/ftp/ftpd/gss_userok.c in Heimdal 0.7.2 does not allocate memory for the ticketfile pointer before calling free, which allows remote attackers to have an unknown impact via an invalid username. NOTE: the vulnerability was originally reported for ftpd.c, but this is incorrect.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
10.0
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Provides administrator access, Allows complete confidentiality, integrity, and availability violation; Allows unauthorized disclosure of information; Allows disruption of service
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.
External Source: OSVDB
Name: 44750
External Source: CONFIRM
Name: http://bugs.gentoo.org/show_bug.cgi?id=199207
External Source: BID
Name: 26758
External Source: MANDRIVA
Name: MDKSA-2007:239
External Source: SECTRACK
Name: 1019057
External Source: FULLDISC
Name: 20071207 Heimdal ftpd uninitialized vulnerability
