CVE-2007-5939

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.

Category

10.0
CVSS
Severity: Critical
CVSS 2.0 •
EPSS 1.66% Top 20%
Vendor Advisory mandriva.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://securitytracker.com/id?1019057 vdb entry
http://osvdb.org/44750 vdb entry
http://www.securityfocus.com/bid/26758 vdb entry
http://bugs.gentoo.org/show_bug.cgi?id=199207
http://www.mandriva.com/security/advisories?name=MDKSA-2007:239 vendor advisory
http://marc.info/?l=full-disclosure&m=119704362903699&w=2 mailing list

Frequently Asked Questions

What is the severity of CVE-2007-5939?
CVE-2007-5939 has been scored as a critical severity vulnerability.
How to fix CVE-2007-5939?
To fix CVE-2007-5939, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2007-5939 being actively exploited in the wild?
It is possible that CVE-2007-5939 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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