CVE-2007-5939 json
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 f…
published 2007-12-06 18 y ago modified 2026-06-16 4 mo ago also EUVD-2007-5909
- cvss
- 10.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.8%
- EPSS 3.8% chance of exploitation in 30 days, percentile 90%
- public exploits
- 0
- none known
Summary
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.
Exploit prediction
3.80% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 10.0 | AV:N/AC:L/Au:N/C:C/I:C/A:C |
Classification
- Weakness
-
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
-
mandriva.com
/security/advisories?name=MDKSA-2007:239
vendor-advisory
-
securitytracker.com
/id?1019057
vdb-entry
-
osvdb.org
/44750
vdb-entry
-
securityfocus.com
/bid/26758
vdb-entry
- bugs.gentoo.org /show_bug.cgi?id=199207
-
marc.info
/?l=full-disclosure&m=119704362903699&w=2
mailing-list
Sources
- CVE List CVE-2007-5939
- NVD CVE-2007-5939
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.