CVE-2007-5939: Buffer Overflow
The gssuserok function in appl/ftp/ftpd/gssuserok.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.
Affected Software
Event History
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.