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Fencer Vulns
high 8.5

CVE-2007-4000 json

The kadm5_modify_policy_internal function in lib/kadm5/srv/svr_policy.c in the Kerberos administration daemon (kadmind) in MIT Kerberos 5 (…

published 2007-09-05 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-3984

cvss
8.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
6.1%
EPSS 6.1% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

The kadm5_modify_policy_internal function in lib/kadm5/srv/svr_policy.c in the Kerberos administration daemon (kadmind) in MIT Kerberos 5 (krb5) 1.5 through 1.6.2 does not properly check return values when the policy does not exist, which might allow remote authenticated users with the "modify policy" privilege to execute arbitrary code via unspecified vectors that trigger a write to an uninitialized pointer.

Patch / fix

  • krb5 Debian 14, Debian 13, Debian 12 1.6.dfsg.1-7

debian advisories DEBIAN-CVE-2007-4000

  • krb5 RHEL 5 1.5-29
  • krb5-libs RHEL 5 1.5-29
  • krb5-server RHEL 5 1.5-29
  • krb5-workstation RHEL 5 1.5-29

red hat advisories RHSA-2007:0858

  • krb5 openSUSE Tumbleweed 1.19.2-2.2

opensuse advisories openSUSE-SU-2024:10899-1

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-2007-4000 updated

krb5 kadmind uninitialized pointer

  • Red Hat Enterprise Linux (v. 5 server) krb5 1.5-29, krb5-libs 1.5-29, krb5-server 1.5-29, krb5-workstation 1.5-29 Red Hat Enterprise Linux Desktop (v. 5 client) krb5 1.5-29, krb5-libs 1.5-29, krb5-server 1.5-29, krb5-workstation 1.5-29 Red Hat Enterprise Linux Desktop Workstation (v. 5 client) krb5 1.5-29, krb5-libs 1.5-29, krb5-server 1.5-29, krb5-workstation 1.5-29
    fixed: vendor fix RHSA-2007:0858

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

6.14% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 8.5 AV:N/AC:M/Au:S/C:C/I:C/A:C

Classification

Weakness
  • CWE-824 Access of Uninitialized Pointer

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.