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Fencer Vulns
medium 5.0

CVE-2009-3295 json

The prep_reprocess_req function in kdc/do_tgs_req.c in the cross-realm referral implementation in the Key Distribution Center (KDC) in MIT…

published 2009-12-29 16 y ago modified 2026-06-16 4 mo ago also EUVD-2009-3277

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
40.3%
EPSS 40.3% chance of exploitation in 30 days, percentile 98%
public exploits
0
none known

Summary

The prep_reprocess_req function in kdc/do_tgs_req.c in the cross-realm referral implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 before 1.7.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a ticket request.

Patch / fix

  • krb5 Debian 14, Debian 13, Debian 12 1.7+dfsg-4

debian advisories DEBIAN-CVE-2009-3295

  • krb5 openSUSE Tumbleweed 1.15-1.1

opensuse advisories openSUSE-SU-2024:10004-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2009-3295 updated cvss 5.0

krb5: KDC denial of service in cross-realm referral processing (MITKRB5-SA-2009-003)

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

40.34% chance of exploitation in the next 30 days, higher than 98% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

References

Sources

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.