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Fencer Vulns
medium 5.0

CVE-2006-5989 json

Off-by-one error in the der_get_oid function in mod_auth_kerb 5.0 allows remote attackers to cause a denial of service (crash) via a crafte…

published 2006-11-20 19 y ago modified 2026-06-16 4 mo ago also EUVD-2006-5972

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Off-by-one error in the der_get_oid function in mod_auth_kerb 5.0 allows remote attackers to cause a denial of service (crash) via a crafted Kerberos message that triggers a heap-based buffer overflow in the component array.

Patch / fix

  • mod_auth_kerb RHEL 4 5.0-1.3

red hat advisories RHSA-2006:0746

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-2006-5989 updated

security flaw

  • Red Hat Enterprise Linux AS version 4 mod_auth_kerb 5.0-1.3 Red Hat Enterprise Linux Desktop version 4 mod_auth_kerb 5.0-1.3 Red Hat Enterprise Linux ES version 4 mod_auth_kerb 5.0-1.3 Red Hat Enterprise Linux WS version 4 mod_auth_kerb 5.0-1.3
    fixed: vendor fix RHSA-2006:0746

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

3.96% 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 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.