CVE-2007-5939 Memory corruption in n/a
Remote attackers can cause a denial of service in the Heimdal FTP server by triggering a memory corruption error via an invalid username.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2007-5939?
CVE-2007-5939 is a critical memory corruption vulnerability in n/a, published on 6 Dec 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-119
Which versions are affected by CVE-2007-5939?
It affects 1 product.
Products include Heimdal Heimdal.
How do I fix CVE-2007-5939?
No fix has been published for CVE-2007-5939 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2007-5939 being exploited?
There is no known exploitation of CVE-2007-5939 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-cfj4-7v4x-xmrv.