CVE Tools

CVE-2007-5939

Published: Dec 6, 2007Updated: Apr 23, 2026 Sources: CVE List NVDCWE-119

10.0CVSSCRITICAL

No Known Exploits

No Fix Available

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.

CVSS Vector Breakdown

Exploitability

AV:NAccess Vector

Network

AC:LAccess Complexity

Low

Au:NAuthentication

None

Impact

C:CConfidentiality

Complete

I:CIntegrity

Complete

A:CAvailability

Complete

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Weaknesses

Affected Products

heimdal heimdal

On-prem

Security Products / endpoint-av-edr

heimdalcommercialSecurity Productsaka heimdal security

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques

Initial Access

Privilege Escalation

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References

http://bugs.gentoo.org/show_bug.cgi?id=199207

bugs.gentoo.org

http://marc.info/?l=full-disclosure&m=119704362903699&w=2

http://osvdb.org/44750

and 3 more references View all →

Timeline

Published

Dec 6, 2007

Last Updated

Apr 23, 2026

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