CVE-2007-5939: Buffer Overflow
First published: Thu Dec 06 2007(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| heimdal | =0.7.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2007-5939?
CVE-2007-5939 is classified with an unknown severity, as it can potentially impact systems based on the exploitation conditions.
How do I fix CVE-2007-5939?
To fix CVE-2007-5939, you should upgrade to a patched version of Heimdal that addresses memory handling issues.
What is the impact of CVE-2007-5939?
The impact of CVE-2007-5939 allows remote attackers to disrupt functions via invalid usernames due to inadequate memory allocation.
Which versions of Heimdal are affected by CVE-2007-5939?
CVE-2007-5939 specifically affects Heimdal version 0.7.2.
Is there a workaround for CVE-2007-5939?
A specific workaround for CVE-2007-5939 is not documented, so updating to a secure version is recommended.
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